diff --git a/management/internals/controllers/network_map/controller/controller.go b/management/internals/controllers/network_map/controller/controller.go
index 4b47ecaa0..5cbf6fceb 100644
--- a/management/internals/controllers/network_map/controller/controller.go
+++ b/management/internals/controllers/network_map/controller/controller.go
@@ -261,6 +261,137 @@ func (c *Controller) UpdateAccountPeers(ctx context.Context, accountID string) e
 	return c.sendUpdateAccountPeers(ctx, accountID)
 }
 
+// UpdateAffectedPeers updates only the specified peers that belong to an account.
+// Should be called when a change is known to affect only a subset of peers.
+// If peerIDs is empty, this is a no-op.
+func (c *Controller) UpdateAffectedPeers(ctx context.Context, accountID string, peerIDs []string) error {
+	if len(peerIDs) == 0 {
+		return nil
+	}
+	return c.sendUpdateForAffectedPeers(ctx, accountID, peerIDs)
+}
+
+func (c *Controller) sendUpdateForAffectedPeers(ctx context.Context, accountID string, peerIDs []string) error {
+	log.WithContext(ctx).Tracef("updating %d affected peers for account %s from %s", len(peerIDs), accountID, util.GetCallerName())
+
+	affected := make(map[string]struct{}, len(peerIDs))
+	for _, id := range peerIDs {
+		affected[id] = struct{}{}
+	}
+
+	// Fast check: any of the affected peers actually connected?
+	hasConnected := false
+	for _, id := range peerIDs {
+		if c.peersUpdateManager.HasChannel(id) {
+			hasConnected = true
+			break
+		}
+	}
+	if !hasConnected {
+		return nil
+	}
+
+	account, err := c.requestBuffer.GetAccountWithBackpressure(ctx, accountID)
+	if err != nil {
+		return fmt.Errorf("failed to get account: %v", err)
+	}
+
+	globalStart := time.Now()
+
+	// Collect the subset of account peers that are both affected and connected.
+	var peersToUpdate []*nbpeer.Peer
+	for _, peer := range account.Peers {
+		if _, ok := affected[peer.ID]; ok && c.peersUpdateManager.HasChannel(peer.ID) {
+			peersToUpdate = append(peersToUpdate, peer)
+		}
+	}
+
+	if len(peersToUpdate) == 0 {
+		return nil
+	}
+
+	approvedPeersMap, err := c.integratedPeerValidator.GetValidatedPeers(ctx, account.Id, maps.Values(account.Groups), maps.Values(account.Peers), account.Settings.Extra)
+	if err != nil {
+		return fmt.Errorf("failed to get validate peers: %v", err)
+	}
+
+	var wg sync.WaitGroup
+	semaphore := make(chan struct{}, 10)
+
+	account.InjectProxyPolicies(ctx)
+	dnsCache := &cache.DNSConfigCache{}
+	dnsDomain := c.GetDNSDomain(account.Settings)
+	peersCustomZone := account.GetPeersCustomZone(ctx, dnsDomain)
+	resourcePolicies := account.GetResourcePoliciesMap()
+	routers := account.GetResourceRoutersMap()
+	groupIDToUserIDs := account.GetActiveGroupUsers()
+
+	proxyNetworkMaps, err := c.proxyController.GetProxyNetworkMapsAll(ctx, accountID, account.Peers)
+	if err != nil {
+		log.WithContext(ctx).Errorf("failed to get proxy network maps: %v", err)
+		return fmt.Errorf("failed to get proxy network maps: %v", err)
+	}
+
+	extraSetting, err := c.settingsManager.GetExtraSettings(ctx, accountID)
+	if err != nil {
+		return fmt.Errorf("failed to get flow enabled status: %v", err)
+	}
+
+	dnsFwdPort := computeForwarderPort(maps.Values(account.Peers), network_map.DnsForwarderPortMinVersion)
+
+	accountZones, err := c.repo.GetAccountZones(ctx, account.Id)
+	if err != nil {
+		log.WithContext(ctx).Errorf("failed to get account zones: %v", err)
+		return fmt.Errorf("failed to get account zones: %v", err)
+	}
+
+	for _, peer := range peersToUpdate {
+		wg.Add(1)
+		semaphore <- struct{}{}
+		go func(p *nbpeer.Peer) {
+			defer wg.Done()
+			defer func() { <-semaphore }()
+
+			start := time.Now()
+
+			postureChecks, err := c.getPeerPostureChecks(account, p.ID)
+			if err != nil {
+				log.WithContext(ctx).Debugf("failed to get posture checks for peer %s: %v", p.ID, err)
+				return
+			}
+
+			c.metrics.CountCalcPostureChecksDuration(time.Since(start))
+			start = time.Now()
+
+			remotePeerNetworkMap := account.GetPeerNetworkMapFromComponents(ctx, p.ID, peersCustomZone, accountZones, approvedPeersMap, resourcePolicies, routers, c.accountManagerMetrics, groupIDToUserIDs)
+
+			c.metrics.CountCalcPeerNetworkMapDuration(time.Since(start))
+
+			proxyNetworkMap, ok := proxyNetworkMaps[p.ID]
+			if ok {
+				remotePeerNetworkMap.Merge(proxyNetworkMap)
+			}
+
+			peerGroups := account.GetPeerGroups(p.ID)
+			start = time.Now()
+			update := grpc.ToSyncResponse(ctx, nil, c.config.HttpConfig, c.config.DeviceAuthorizationFlow, p, nil, nil, remotePeerNetworkMap, dnsDomain, postureChecks, dnsCache, account.Settings, extraSetting, maps.Keys(peerGroups), dnsFwdPort)
+			c.metrics.CountToSyncResponseDuration(time.Since(start))
+
+			c.peersUpdateManager.SendUpdate(ctx, p.ID, &network_map.UpdateMessage{
+				Update:      update,
+				MessageType: network_map.MessageTypeNetworkMap,
+			})
+		}(peer)
+	}
+
+	wg.Wait()
+	if c.accountManagerMetrics != nil {
+		c.accountManagerMetrics.CountUpdateAccountPeersDuration(time.Since(globalStart))
+	}
+
+	return nil
+}
+
 func (c *Controller) UpdateAccountPeer(ctx context.Context, accountId string, peerId string) error {
 	if !c.peersUpdateManager.HasChannel(peerId) {
 		return fmt.Errorf("peer %s doesn't have a channel, skipping network map update", peerId)
diff --git a/management/internals/controllers/network_map/interface.go b/management/internals/controllers/network_map/interface.go
index cfea2d3de..8d81556f9 100644
--- a/management/internals/controllers/network_map/interface.go
+++ b/management/internals/controllers/network_map/interface.go
@@ -19,6 +19,7 @@ const (
 
 type Controller interface {
 	UpdateAccountPeers(ctx context.Context, accountID string) error
+	UpdateAffectedPeers(ctx context.Context, accountID string, peerIDs []string) error
 	UpdateAccountPeer(ctx context.Context, accountId string, peerId string) error
 	BufferUpdateAccountPeers(ctx context.Context, accountID string) error
 	GetValidatedPeerWithMap(ctx context.Context, isRequiresApproval bool, accountID string, p *nbpeer.Peer) (*nbpeer.Peer, *types.NetworkMap, []*posture.Checks, int64, error)
diff --git a/management/internals/controllers/network_map/interface_mock.go b/management/internals/controllers/network_map/interface_mock.go
index 4e86d2973..b2ef0b861 100644
--- a/management/internals/controllers/network_map/interface_mock.go
+++ b/management/internals/controllers/network_map/interface_mock.go
@@ -250,3 +250,17 @@ func (mr *MockControllerMockRecorder) UpdateAccountPeers(ctx, accountID any) *go
 	mr.mock.ctrl.T.Helper()
 	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "UpdateAccountPeers", reflect.TypeOf((*MockController)(nil).UpdateAccountPeers), ctx, accountID)
 }
+
+// UpdateAffectedPeers mocks base method.
+func (m *MockController) UpdateAffectedPeers(ctx context.Context, accountID string, peerIDs []string) error {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "UpdateAffectedPeers", ctx, accountID, peerIDs)
+	ret0, _ := ret[0].(error)
+	return ret0
+}
+
+// UpdateAffectedPeers indicates an expected call of UpdateAffectedPeers.
+func (mr *MockControllerMockRecorder) UpdateAffectedPeers(ctx, accountID, peerIDs any) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "UpdateAffectedPeers", reflect.TypeOf((*MockController)(nil).UpdateAffectedPeers), ctx, accountID, peerIDs)
+}
diff --git a/management/server/account/manager.go b/management/server/account/manager.go
index b4516d512..576054d1e 100644
--- a/management/server/account/manager.go
+++ b/management/server/account/manager.go
@@ -125,6 +125,7 @@ type Manager interface {
 	GetAccountSettings(ctx context.Context, accountID string, userID string) (*types.Settings, error)
 	DeleteSetupKey(ctx context.Context, accountID, userID, keyID string) error
 	UpdateAccountPeers(ctx context.Context, accountID string)
+	UpdateAffectedPeers(ctx context.Context, accountID string, peerIDs []string)
 	BufferUpdateAccountPeers(ctx context.Context, accountID string)
 	BuildUserInfosForAccount(ctx context.Context, accountID, initiatorUserID string, accountUsers []*types.User) (map[string]*types.UserInfo, error)
 	SyncUserJWTGroups(ctx context.Context, userAuth auth.UserAuth) error
diff --git a/management/server/account/manager_mock.go b/management/server/account/manager_mock.go
index 36e5fe39f..c595346f8 100644
--- a/management/server/account/manager_mock.go
+++ b/management/server/account/manager_mock.go
@@ -1608,6 +1608,18 @@ func (mr *MockManagerMockRecorder) UpdateAccountPeers(ctx, accountID interface{}
 	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "UpdateAccountPeers", reflect.TypeOf((*MockManager)(nil).UpdateAccountPeers), ctx, accountID)
 }
 
+// UpdateAffectedPeers mocks base method.
+func (m *MockManager) UpdateAffectedPeers(ctx context.Context, accountID string, peerIDs []string) {
+	m.ctrl.T.Helper()
+	m.ctrl.Call(m, "UpdateAffectedPeers", ctx, accountID, peerIDs)
+}
+
+// UpdateAffectedPeers indicates an expected call of UpdateAffectedPeers.
+func (mr *MockManagerMockRecorder) UpdateAffectedPeers(ctx, accountID, peerIDs interface{}) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "UpdateAffectedPeers", reflect.TypeOf((*MockManager)(nil).UpdateAffectedPeers), ctx, accountID, peerIDs)
+}
+
 // UpdateAccountSettings mocks base method.
 func (m *MockManager) UpdateAccountSettings(ctx context.Context, accountID, userID string, newSettings *types.Settings) (*types.Settings, error) {
 	m.ctrl.T.Helper()
diff --git a/management/server/dns.go b/management/server/dns.go
index baf6debc3..1e213ffbb 100644
--- a/management/server/dns.go
+++ b/management/server/dns.go
@@ -47,8 +47,8 @@ func (am *DefaultAccountManager) SaveDNSSettings(ctx context.Context, accountID
 		return status.NewPermissionDeniedError()
 	}
 
-	var updateAccountPeers bool
 	var eventsToStore []func()
+	var affectedPeerIDs []string
 
 	err = am.Store.ExecuteInTransaction(ctx, func(transaction store.Store) error {
 		if err = validateDNSSettings(ctx, transaction, accountID, dnsSettingsToSave); err != nil {
@@ -63,11 +63,6 @@ func (am *DefaultAccountManager) SaveDNSSettings(ctx context.Context, accountID
 		addedGroups := util.Difference(dnsSettingsToSave.DisabledManagementGroups, oldSettings.DisabledManagementGroups)
 		removedGroups := util.Difference(oldSettings.DisabledManagementGroups, dnsSettingsToSave.DisabledManagementGroups)
 
-		updateAccountPeers, err = areDNSSettingChangesAffectPeers(ctx, transaction, accountID, addedGroups, removedGroups)
-		if err != nil {
-			return err
-		}
-
 		events := am.prepareDNSSettingsEvents(ctx, transaction, accountID, userID, addedGroups, removedGroups)
 		eventsToStore = append(eventsToStore, events...)
 
@@ -75,6 +70,9 @@ func (am *DefaultAccountManager) SaveDNSSettings(ctx context.Context, accountID
 			return err
 		}
 
+		allGroups := slices.Concat(addedGroups, removedGroups)
+		affectedPeerIDs = am.resolvePeerIDs(ctx, transaction, accountID, allGroups, nil)
+
 		return transaction.IncrementNetworkSerial(ctx, accountID)
 	})
 	if err != nil {
@@ -85,8 +83,8 @@ func (am *DefaultAccountManager) SaveDNSSettings(ctx context.Context, accountID
 		storeEvent()
 	}
 
-	if updateAccountPeers {
-		am.UpdateAccountPeers(ctx, accountID)
+	if len(affectedPeerIDs) > 0 {
+		am.UpdateAffectedPeers(ctx, accountID, affectedPeerIDs)
 	}
 
 	return nil
@@ -133,20 +131,6 @@ func (am *DefaultAccountManager) prepareDNSSettingsEvents(ctx context.Context, t
 	return eventsToStore
 }
 
-// areDNSSettingChangesAffectPeers checks if the DNS settings changes affect any peers.
-func areDNSSettingChangesAffectPeers(ctx context.Context, transaction store.Store, accountID string, addedGroups, removedGroups []string) (bool, error) {
-	hasPeers, err := anyGroupHasPeersOrResources(ctx, transaction, accountID, addedGroups)
-	if err != nil {
-		return false, err
-	}
-
-	if hasPeers {
-		return true, nil
-	}
-
-	return anyGroupHasPeersOrResources(ctx, transaction, accountID, removedGroups)
-}
-
 // validateDNSSettings validates the DNS settings.
 func validateDNSSettings(ctx context.Context, transaction store.Store, accountID string, settings *types.DNSSettings) error {
 	if len(settings.DisabledManagementGroups) == 0 {
diff --git a/management/server/group.go b/management/server/group.go
index 7b5b9b86c..4bd249398 100644
--- a/management/server/group.go
+++ b/management/server/group.go
@@ -79,7 +79,7 @@ func (am *DefaultAccountManager) CreateGroup(ctx context.Context, accountID, use
 	}
 
 	var eventsToStore []func()
-	var updateAccountPeers bool
+	var affectedPeerIDs []string
 
 	err = am.Store.ExecuteInTransaction(ctx, func(transaction store.Store) error {
 		if err = validateNewGroup(ctx, transaction, accountID, newGroup); err != nil {
@@ -91,11 +91,6 @@ func (am *DefaultAccountManager) CreateGroup(ctx context.Context, accountID, use
 		events := am.prepareGroupEvents(ctx, transaction, accountID, userID, newGroup)
 		eventsToStore = append(eventsToStore, events...)
 
-		updateAccountPeers, err = areGroupChangesAffectPeers(ctx, transaction, accountID, []string{newGroup.ID})
-		if err != nil {
-			return err
-		}
-
 		if err := transaction.CreateGroup(ctx, newGroup); err != nil {
 			return status.Errorf(status.Internal, "failed to create group: %v", err)
 		}
@@ -106,6 +101,9 @@ func (am *DefaultAccountManager) CreateGroup(ctx context.Context, accountID, use
 			}
 		}
 
+		groupIDs, directPeerIDs := collectGroupChangeAffectedGroups(ctx, transaction, accountID, []string{newGroup.ID})
+		affectedPeerIDs = am.resolvePeerIDs(ctx, transaction, accountID, groupIDs, directPeerIDs)
+
 		return transaction.IncrementNetworkSerial(ctx, accountID)
 	})
 	if err != nil {
@@ -116,8 +114,8 @@ func (am *DefaultAccountManager) CreateGroup(ctx context.Context, accountID, use
 		storeEvent()
 	}
 
-	if updateAccountPeers {
-		am.UpdateAccountPeers(ctx, accountID)
+	if len(affectedPeerIDs) > 0 {
+		am.UpdateAffectedPeers(ctx, accountID, affectedPeerIDs)
 	}
 
 	return nil
@@ -134,7 +132,7 @@ func (am *DefaultAccountManager) UpdateGroup(ctx context.Context, accountID, use
 	}
 
 	var eventsToStore []func()
-	var updateAccountPeers bool
+	var affectedPeerIDs []string
 
 	err = am.Store.ExecuteInTransaction(ctx, func(transaction store.Store) error {
 		if err = validateNewGroup(ctx, transaction, accountID, newGroup); err != nil {
@@ -165,15 +163,13 @@ func (am *DefaultAccountManager) UpdateGroup(ctx context.Context, accountID, use
 			}
 		}
 
-		updateAccountPeers, err = areGroupChangesAffectPeers(ctx, transaction, accountID, []string{newGroup.ID})
-		if err != nil {
-			return err
-		}
-
 		if err = transaction.UpdateGroup(ctx, newGroup); err != nil {
 			return err
 		}
 
+		groupIDs, directPeerIDs := collectGroupChangeAffectedGroups(ctx, transaction, accountID, []string{newGroup.ID})
+		affectedPeerIDs = am.resolvePeerIDs(ctx, transaction, accountID, groupIDs, directPeerIDs)
+
 		return transaction.IncrementNetworkSerial(ctx, accountID)
 	})
 	if err != nil {
@@ -184,8 +180,8 @@ func (am *DefaultAccountManager) UpdateGroup(ctx context.Context, accountID, use
 		storeEvent()
 	}
 
-	if updateAccountPeers {
-		am.UpdateAccountPeers(ctx, accountID)
+	if len(affectedPeerIDs) > 0 {
+		am.UpdateAffectedPeers(ctx, accountID, affectedPeerIDs)
 	}
 
 	return nil
@@ -205,7 +201,6 @@ func (am *DefaultAccountManager) CreateGroups(ctx context.Context, accountID, us
 	}
 
 	var eventsToStore []func()
-	var updateAccountPeers bool
 
 	var globalErr error
 	groupIDs := make([]string, 0, len(groups))
@@ -243,17 +238,14 @@ func (am *DefaultAccountManager) CreateGroups(ctx context.Context, accountID, us
 		}
 	}
 
-	updateAccountPeers, err = areGroupChangesAffectPeers(ctx, am.Store, accountID, groupIDs)
-	if err != nil {
-		return err
-	}
-
 	for _, storeEvent := range eventsToStore {
 		storeEvent()
 	}
 
-	if updateAccountPeers {
-		am.UpdateAccountPeers(ctx, accountID)
+	allGroupIDs, directPeerIDs := collectGroupChangeAffectedGroups(ctx, am.Store, accountID, groupIDs)
+	affectedPeerIDs := am.resolvePeerIDs(ctx, am.Store, accountID, allGroupIDs, directPeerIDs)
+	if len(affectedPeerIDs) > 0 {
+		am.UpdateAffectedPeers(ctx, accountID, affectedPeerIDs)
 	}
 
 	return globalErr
@@ -273,7 +265,6 @@ func (am *DefaultAccountManager) UpdateGroups(ctx context.Context, accountID, us
 	}
 
 	var eventsToStore []func()
-	var updateAccountPeers bool
 
 	var globalErr error
 	groupIDs := make([]string, 0, len(groups))
@@ -311,17 +302,14 @@ func (am *DefaultAccountManager) UpdateGroups(ctx context.Context, accountID, us
 		}
 	}
 
-	updateAccountPeers, err = areGroupChangesAffectPeers(ctx, am.Store, accountID, groupIDs)
-	if err != nil {
-		return err
-	}
-
 	for _, storeEvent := range eventsToStore {
 		storeEvent()
 	}
 
-	if updateAccountPeers {
-		am.UpdateAccountPeers(ctx, accountID)
+	allGroupIDs, directPeerIDs := collectGroupChangeAffectedGroups(ctx, am.Store, accountID, groupIDs)
+	affectedPeerIDs := am.resolvePeerIDs(ctx, am.Store, accountID, allGroupIDs, directPeerIDs)
+	if len(affectedPeerIDs) > 0 {
+		am.UpdateAffectedPeers(ctx, accountID, affectedPeerIDs)
 	}
 
 	return globalErr
@@ -473,27 +461,25 @@ func (am *DefaultAccountManager) DeleteGroups(ctx context.Context, accountID, us
 
 // GroupAddPeer appends peer to the group
 func (am *DefaultAccountManager) GroupAddPeer(ctx context.Context, accountID, groupID, peerID string) error {
-	var updateAccountPeers bool
+	var affectedPeerIDs []string
 	var err error
 
 	err = am.Store.ExecuteInTransaction(ctx, func(transaction store.Store) error {
-		updateAccountPeers, err = areGroupChangesAffectPeers(ctx, transaction, accountID, []string{groupID})
-		if err != nil {
-			return err
-		}
-
 		if err = transaction.AddPeerToGroup(ctx, accountID, peerID, groupID); err != nil {
 			return err
 		}
 
+		allGroupIDs, directPeerIDs := collectGroupChangeAffectedGroups(ctx, transaction, accountID, []string{groupID})
+		affectedPeerIDs = am.resolvePeerIDs(ctx, transaction, accountID, allGroupIDs, directPeerIDs)
+
 		return transaction.IncrementNetworkSerial(ctx, accountID)
 	})
 	if err != nil {
 		return err
 	}
 
-	if updateAccountPeers {
-		am.UpdateAccountPeers(ctx, accountID)
+	if len(affectedPeerIDs) > 0 {
+		am.UpdateAffectedPeers(ctx, accountID, affectedPeerIDs)
 	}
 
 	return nil
@@ -502,7 +488,7 @@ func (am *DefaultAccountManager) GroupAddPeer(ctx context.Context, accountID, gr
 // GroupAddResource appends resource to the group
 func (am *DefaultAccountManager) GroupAddResource(ctx context.Context, accountID, groupID string, resource types.Resource) error {
 	var group *types.Group
-	var updateAccountPeers bool
+	var affectedPeerIDs []string
 	var err error
 
 	err = am.Store.ExecuteInTransaction(ctx, func(transaction store.Store) error {
@@ -515,23 +501,21 @@ func (am *DefaultAccountManager) GroupAddResource(ctx context.Context, accountID
 			return nil
 		}
 
-		updateAccountPeers, err = areGroupChangesAffectPeers(ctx, transaction, accountID, []string{groupID})
-		if err != nil {
-			return err
-		}
-
 		if err = transaction.UpdateGroup(ctx, group); err != nil {
 			return err
 		}
 
+		allGroupIDs, directPeerIDs := collectGroupChangeAffectedGroups(ctx, transaction, accountID, []string{groupID})
+		affectedPeerIDs = am.resolvePeerIDs(ctx, transaction, accountID, allGroupIDs, directPeerIDs)
+
 		return transaction.IncrementNetworkSerial(ctx, accountID)
 	})
 	if err != nil {
 		return err
 	}
 
-	if updateAccountPeers {
-		am.UpdateAccountPeers(ctx, accountID)
+	if len(affectedPeerIDs) > 0 {
+		am.UpdateAffectedPeers(ctx, accountID, affectedPeerIDs)
 	}
 
 	return nil
@@ -539,14 +523,13 @@ func (am *DefaultAccountManager) GroupAddResource(ctx context.Context, accountID
 
 // GroupDeletePeer removes peer from the group
 func (am *DefaultAccountManager) GroupDeletePeer(ctx context.Context, accountID, groupID, peerID string) error {
-	var updateAccountPeers bool
+	var affectedPeerIDs []string
 	var err error
 
 	err = am.Store.ExecuteInTransaction(ctx, func(transaction store.Store) error {
-		updateAccountPeers, err = areGroupChangesAffectPeers(ctx, transaction, accountID, []string{groupID})
-		if err != nil {
-			return err
-		}
+		// Resolve before removing, so the peer being removed is still included
+		allGroupIDs, directPeerIDs := collectGroupChangeAffectedGroups(ctx, transaction, accountID, []string{groupID})
+		affectedPeerIDs = am.resolvePeerIDs(ctx, transaction, accountID, allGroupIDs, directPeerIDs)
 
 		if err = transaction.RemovePeerFromGroup(ctx, peerID, groupID); err != nil {
 			return err
@@ -558,8 +541,8 @@ func (am *DefaultAccountManager) GroupDeletePeer(ctx context.Context, accountID,
 		return err
 	}
 
-	if updateAccountPeers {
-		am.UpdateAccountPeers(ctx, accountID)
+	if len(affectedPeerIDs) > 0 {
+		am.UpdateAffectedPeers(ctx, accountID, affectedPeerIDs)
 	}
 
 	return nil
@@ -568,7 +551,7 @@ func (am *DefaultAccountManager) GroupDeletePeer(ctx context.Context, accountID,
 // GroupDeleteResource removes resource from the group
 func (am *DefaultAccountManager) GroupDeleteResource(ctx context.Context, accountID, groupID string, resource types.Resource) error {
 	var group *types.Group
-	var updateAccountPeers bool
+	var affectedPeerIDs []string
 	var err error
 
 	err = am.Store.ExecuteInTransaction(ctx, func(transaction store.Store) error {
@@ -581,23 +564,21 @@ func (am *DefaultAccountManager) GroupDeleteResource(ctx context.Context, accoun
 			return nil
 		}
 
-		updateAccountPeers, err = areGroupChangesAffectPeers(ctx, transaction, accountID, []string{groupID})
-		if err != nil {
-			return err
-		}
-
 		if err = transaction.UpdateGroup(ctx, group); err != nil {
 			return err
 		}
 
+		allGroupIDs, directPeerIDs := collectGroupChangeAffectedGroups(ctx, transaction, accountID, []string{groupID})
+		affectedPeerIDs = am.resolvePeerIDs(ctx, transaction, accountID, allGroupIDs, directPeerIDs)
+
 		return transaction.IncrementNetworkSerial(ctx, accountID)
 	})
 	if err != nil {
 		return err
 	}
 
-	if updateAccountPeers {
-		am.UpdateAccountPeers(ctx, accountID)
+	if len(affectedPeerIDs) > 0 {
+		am.UpdateAffectedPeers(ctx, accountID, affectedPeerIDs)
 	}
 
 	return nil
@@ -840,18 +821,175 @@ func areGroupChangesAffectPeers(ctx context.Context, transaction store.Store, ac
 	return false, nil
 }
 
-// anyGroupHasPeersOrResources checks if any of the given groups in the account have peers or resources.
-func anyGroupHasPeersOrResources(ctx context.Context, transaction store.Store, accountID string, groupIDs []string) (bool, error) {
-	groups, err := transaction.GetGroupsByIDs(ctx, store.LockingStrengthNone, accountID, groupIDs)
-	if err != nil {
-		return false, err
+// collectGroupChangeAffectedGroups walks all entities that reference the changed groups
+// and collects the full set of affected group IDs and direct peer IDs.
+// This ensures that when a group changes, we update not just the peers in that group
+// but also peers in other groups that share policies, routes, DNS, or nameserver configs.
+func collectGroupChangeAffectedGroups(ctx context.Context, transaction store.Store, accountID string, changedGroupIDs []string) (allGroupIDs []string, directPeerIDs []string) {
+	if len(changedGroupIDs) == 0 {
+		return nil, nil
 	}
 
-	for _, group := range groups {
-		if group.HasPeers() || group.HasResources() {
-			return true, nil
+	changedSet := make(map[string]struct{}, len(changedGroupIDs))
+	for _, id := range changedGroupIDs {
+		changedSet[id] = struct{}{}
+	}
+
+	groupSet := make(map[string]struct{})
+	// Always include the changed groups themselves
+	for _, id := range changedGroupIDs {
+		groupSet[id] = struct{}{}
+	}
+
+	peerSet := make(map[string]struct{})
+
+	// Policies: collect all rule groups + direct peer resources from policies that reference any changed group
+	policies, err := transaction.GetAccountPolicies(ctx, store.LockingStrengthNone, accountID)
+	if err != nil {
+		log.WithContext(ctx).Errorf("failed to get policies for group change resolution: %v", err)
+	} else {
+		for _, policy := range policies {
+			if !policyReferencesGroups(policy, changedSet) {
+				continue
+			}
+			for _, gID := range policy.RuleGroups() {
+				groupSet[gID] = struct{}{}
+			}
+			for _, rule := range policy.Rules {
+				if rule.SourceResource.Type == types.ResourceTypePeer && rule.SourceResource.ID != "" {
+					peerSet[rule.SourceResource.ID] = struct{}{}
+				}
+				if rule.DestinationResource.Type == types.ResourceTypePeer && rule.DestinationResource.ID != "" {
+					peerSet[rule.DestinationResource.ID] = struct{}{}
+				}
+			}
 		}
 	}
 
-	return false, nil
+	// Routes: collect all groups + direct peer from routes that reference any changed group
+	routes, err := transaction.GetAccountRoutes(ctx, store.LockingStrengthNone, accountID)
+	if err != nil {
+		log.WithContext(ctx).Errorf("failed to get routes for group change resolution: %v", err)
+	} else {
+		for _, r := range routes {
+			if !routeReferencesGroups(r, changedSet) {
+				continue
+			}
+			for _, gID := range r.Groups {
+				groupSet[gID] = struct{}{}
+			}
+			for _, gID := range r.PeerGroups {
+				groupSet[gID] = struct{}{}
+			}
+			for _, gID := range r.AccessControlGroups {
+				groupSet[gID] = struct{}{}
+			}
+			if r.Peer != "" {
+				peerSet[r.Peer] = struct{}{}
+			}
+		}
+	}
+
+	// Nameserver groups: collect groups from NS groups that reference any changed group
+	nsGroups, err := transaction.GetAccountNameServerGroups(ctx, store.LockingStrengthNone, accountID)
+	if err != nil {
+		log.WithContext(ctx).Errorf("failed to get nameserver groups for group change resolution: %v", err)
+	} else {
+		for _, ns := range nsGroups {
+			for _, gID := range ns.Groups {
+				if _, ok := changedSet[gID]; ok {
+					for _, g := range ns.Groups {
+						groupSet[g] = struct{}{}
+					}
+					break
+				}
+			}
+		}
+	}
+
+	// DNS settings: if any changed group is in DisabledManagementGroups, include those groups
+	dnsSettings, err := transaction.GetAccountDNSSettings(ctx, store.LockingStrengthNone, accountID)
+	if err != nil {
+		log.WithContext(ctx).Errorf("failed to get DNS settings for group change resolution: %v", err)
+	} else {
+		for _, gID := range dnsSettings.DisabledManagementGroups {
+			if _, ok := changedSet[gID]; ok {
+				groupSet[gID] = struct{}{}
+			}
+		}
+	}
+
+	// Network routers: collect peer groups + direct peer from routers that reference any changed group
+	routers, err := transaction.GetNetworkRoutersByAccountID(ctx, store.LockingStrengthNone, accountID)
+	if err != nil {
+		log.WithContext(ctx).Errorf("failed to get network routers for group change resolution: %v", err)
+	} else {
+		for _, router := range routers {
+			if !routerReferencesGroups(router, changedSet) {
+				continue
+			}
+			for _, gID := range router.PeerGroups {
+				groupSet[gID] = struct{}{}
+			}
+			if router.Peer != "" {
+				peerSet[router.Peer] = struct{}{}
+			}
+		}
+	}
+
+	allGroupIDs = make([]string, 0, len(groupSet))
+	for gID := range groupSet {
+		allGroupIDs = append(allGroupIDs, gID)
+	}
+
+	directPeerIDs = make([]string, 0, len(peerSet))
+	for pID := range peerSet {
+		directPeerIDs = append(directPeerIDs, pID)
+	}
+
+	return allGroupIDs, directPeerIDs
+}
+
+func policyReferencesGroups(policy *types.Policy, groupSet map[string]struct{}) bool {
+	for _, rule := range policy.Rules {
+		for _, gID := range rule.Sources {
+			if _, ok := groupSet[gID]; ok {
+				return true
+			}
+		}
+		for _, gID := range rule.Destinations {
+			if _, ok := groupSet[gID]; ok {
+				return true
+			}
+		}
+	}
+	return false
+}
+
+func routeReferencesGroups(r *route.Route, groupSet map[string]struct{}) bool {
+	for _, gID := range r.Groups {
+		if _, ok := groupSet[gID]; ok {
+			return true
+		}
+	}
+	for _, gID := range r.PeerGroups {
+		if _, ok := groupSet[gID]; ok {
+			return true
+		}
+	}
+	for _, gID := range r.AccessControlGroups {
+		if _, ok := groupSet[gID]; ok {
+			return true
+		}
+	}
+	return false
+}
+
+func routerReferencesGroups(router *routerTypes.NetworkRouter, groupSet map[string]struct{}) bool {
+	for _, gID := range router.PeerGroups {
+		if _, ok := groupSet[gID]; ok {
+			return true
+		}
+	}
+	return false
 }
diff --git a/management/server/mock_server/account_mock.go b/management/server/mock_server/account_mock.go
index ff369355e..5a9009da7 100644
--- a/management/server/mock_server/account_mock.go
+++ b/management/server/mock_server/account_mock.go
@@ -129,6 +129,7 @@ type MockAccountManager struct {
 
 	AllowSyncFunc                  func(string, uint64) bool
 	UpdateAccountPeersFunc         func(ctx context.Context, accountID string)
+	UpdateAffectedPeersFunc        func(ctx context.Context, accountID string, peerIDs []string)
 	BufferUpdateAccountPeersFunc   func(ctx context.Context, accountID string)
 	RecalculateNetworkMapCacheFunc func(ctx context.Context, accountId string) error
 
@@ -206,6 +207,12 @@ func (am *MockAccountManager) UpdateAccountPeers(ctx context.Context, accountID
 	}
 }
 
+func (am *MockAccountManager) UpdateAffectedPeers(ctx context.Context, accountID string, peerIDs []string) {
+	if am.UpdateAffectedPeersFunc != nil {
+		am.UpdateAffectedPeersFunc(ctx, accountID, peerIDs)
+	}
+}
+
 func (am *MockAccountManager) BufferUpdateAccountPeers(ctx context.Context, accountID string) {
 	if am.BufferUpdateAccountPeersFunc != nil {
 		am.BufferUpdateAccountPeersFunc(ctx, accountID)
diff --git a/management/server/nameserver.go b/management/server/nameserver.go
index 3d8c78912..823fc72d5 100644
--- a/management/server/nameserver.go
+++ b/management/server/nameserver.go
@@ -4,6 +4,7 @@ import (
 	"context"
 	"errors"
 	"fmt"
+	"slices"
 	"strings"
 	"unicode/utf8"
 
@@ -57,22 +58,19 @@ func (am *DefaultAccountManager) CreateNameServerGroup(ctx context.Context, acco
 		SearchDomainsEnabled: searchDomainEnabled,
 	}
 
-	var updateAccountPeers bool
+	var affectedPeerIDs []string
 
 	err = am.Store.ExecuteInTransaction(ctx, func(transaction store.Store) error {
 		if err = validateNameServerGroup(ctx, transaction, accountID, newNSGroup); err != nil {
 			return err
 		}
 
-		updateAccountPeers, err = anyGroupHasPeersOrResources(ctx, transaction, accountID, newNSGroup.Groups)
-		if err != nil {
-			return err
-		}
-
 		if err = transaction.SaveNameServerGroup(ctx, newNSGroup); err != nil {
 			return err
 		}
 
+		affectedPeerIDs = am.resolvePeerIDs(ctx, transaction, accountID, newNSGroup.Groups, nil)
+
 		return transaction.IncrementNetworkSerial(ctx, accountID)
 	})
 	if err != nil {
@@ -81,8 +79,8 @@ func (am *DefaultAccountManager) CreateNameServerGroup(ctx context.Context, acco
 
 	am.StoreEvent(ctx, userID, newNSGroup.ID, accountID, activity.NameserverGroupCreated, newNSGroup.EventMeta())
 
-	if updateAccountPeers {
-		am.UpdateAccountPeers(ctx, accountID)
+	if len(affectedPeerIDs) > 0 {
+		am.UpdateAffectedPeers(ctx, accountID, affectedPeerIDs)
 	}
 
 	return newNSGroup.Copy(), nil
@@ -102,7 +100,7 @@ func (am *DefaultAccountManager) SaveNameServerGroup(ctx context.Context, accoun
 		return status.NewPermissionDeniedError()
 	}
 
-	var updateAccountPeers bool
+	var affectedPeerIDs []string
 
 	err = am.Store.ExecuteInTransaction(ctx, func(transaction store.Store) error {
 		oldNSGroup, err := transaction.GetNameServerGroupByID(ctx, store.LockingStrengthNone, accountID, nsGroupToSave.ID)
@@ -115,15 +113,13 @@ func (am *DefaultAccountManager) SaveNameServerGroup(ctx context.Context, accoun
 			return err
 		}
 
-		updateAccountPeers, err = areNameServerGroupChangesAffectPeers(ctx, transaction, nsGroupToSave, oldNSGroup)
-		if err != nil {
-			return err
-		}
-
 		if err = transaction.SaveNameServerGroup(ctx, nsGroupToSave); err != nil {
 			return err
 		}
 
+		allGroups := slices.Concat(nsGroupToSave.Groups, oldNSGroup.Groups)
+		affectedPeerIDs = am.resolvePeerIDs(ctx, transaction, accountID, allGroups, nil)
+
 		return transaction.IncrementNetworkSerial(ctx, accountID)
 	})
 	if err != nil {
@@ -132,8 +128,8 @@ func (am *DefaultAccountManager) SaveNameServerGroup(ctx context.Context, accoun
 
 	am.StoreEvent(ctx, userID, nsGroupToSave.ID, accountID, activity.NameserverGroupUpdated, nsGroupToSave.EventMeta())
 
-	if updateAccountPeers {
-		am.UpdateAccountPeers(ctx, accountID)
+	if len(affectedPeerIDs) > 0 {
+		am.UpdateAffectedPeers(ctx, accountID, affectedPeerIDs)
 	}
 
 	return nil
@@ -150,7 +146,7 @@ func (am *DefaultAccountManager) DeleteNameServerGroup(ctx context.Context, acco
 	}
 
 	var nsGroup *nbdns.NameServerGroup
-	var updateAccountPeers bool
+	var affectedPeerIDs []string
 
 	err = am.Store.ExecuteInTransaction(ctx, func(transaction store.Store) error {
 		nsGroup, err = transaction.GetNameServerGroupByID(ctx, store.LockingStrengthUpdate, accountID, nsGroupID)
@@ -158,10 +154,7 @@ func (am *DefaultAccountManager) DeleteNameServerGroup(ctx context.Context, acco
 			return err
 		}
 
-		updateAccountPeers, err = anyGroupHasPeersOrResources(ctx, transaction, accountID, nsGroup.Groups)
-		if err != nil {
-			return err
-		}
+		affectedPeerIDs = am.resolvePeerIDs(ctx, transaction, accountID, nsGroup.Groups, nil)
 
 		if err = transaction.DeleteNameServerGroup(ctx, accountID, nsGroupID); err != nil {
 			return err
@@ -175,8 +168,8 @@ func (am *DefaultAccountManager) DeleteNameServerGroup(ctx context.Context, acco
 
 	am.StoreEvent(ctx, userID, nsGroup.ID, accountID, activity.NameserverGroupDeleted, nsGroup.EventMeta())
 
-	if updateAccountPeers {
-		am.UpdateAccountPeers(ctx, accountID)
+	if len(affectedPeerIDs) > 0 {
+		am.UpdateAffectedPeers(ctx, accountID, affectedPeerIDs)
 	}
 
 	return nil
@@ -224,24 +217,6 @@ func validateNameServerGroup(ctx context.Context, transaction store.Store, accou
 	return validateGroups(nameserverGroup.Groups, groups)
 }
 
-// areNameServerGroupChangesAffectPeers checks if the changes in the nameserver group affect the peers.
-func areNameServerGroupChangesAffectPeers(ctx context.Context, transaction store.Store, newNSGroup, oldNSGroup *nbdns.NameServerGroup) (bool, error) {
-	if !newNSGroup.Enabled && !oldNSGroup.Enabled {
-		return false, nil
-	}
-
-	hasPeers, err := anyGroupHasPeersOrResources(ctx, transaction, newNSGroup.AccountID, newNSGroup.Groups)
-	if err != nil {
-		return false, err
-	}
-
-	if hasPeers {
-		return true, nil
-	}
-
-	return anyGroupHasPeersOrResources(ctx, transaction, oldNSGroup.AccountID, oldNSGroup.Groups)
-}
-
 func validateDomainInput(primary bool, domains []string, searchDomainsEnabled bool) error {
 	if !primary && len(domains) == 0 {
 		return status.Errorf(status.InvalidArgument, "nameserver group primary status is false and domains are empty,"+
diff --git a/management/server/peer.go b/management/server/peer.go
index a95ae17a3..39368c840 100644
--- a/management/server/peer.go
+++ b/management/server/peer.go
@@ -1294,6 +1294,38 @@ func (am *DefaultAccountManager) UpdateAccountPeers(ctx context.Context, account
 	_ = am.networkMapController.UpdateAccountPeers(ctx, accountID)
 }
 
+// UpdateAffectedPeers updates only the specified peers that belong to an account.
+// Should be called when a change is known to affect only a subset of peers.
+func (am *DefaultAccountManager) UpdateAffectedPeers(ctx context.Context, accountID string, peerIDs []string) {
+	_ = am.networkMapController.UpdateAffectedPeers(ctx, accountID, peerIDs)
+}
+
+// resolvePeerIDs resolves a set of group IDs and direct peer IDs into a
+// deduplicated list of peer IDs suitable for UpdateAffectedPeers.
+func (am *DefaultAccountManager) resolvePeerIDs(ctx context.Context, s store.Store, accountID string, groupIDs []string, directPeerIDs []string) []string {
+	peerIDs, err := s.GetPeerIDsByGroups(ctx, accountID, groupIDs)
+	if err != nil {
+		log.WithContext(ctx).Errorf("failed to resolve peer IDs by groups: %v", err)
+		return nil
+	}
+
+	if len(directPeerIDs) == 0 {
+		return peerIDs
+	}
+
+	seen := make(map[string]struct{}, len(peerIDs))
+	for _, id := range peerIDs {
+		seen[id] = struct{}{}
+	}
+	for _, id := range directPeerIDs {
+		if _, exists := seen[id]; !exists {
+			peerIDs = append(peerIDs, id)
+			seen[id] = struct{}{}
+		}
+	}
+	return peerIDs
+}
+
 func (am *DefaultAccountManager) BufferUpdateAccountPeers(ctx context.Context, accountID string) {
 	_ = am.networkMapController.BufferUpdateAccountPeers(ctx, accountID)
 }
diff --git a/management/server/policy.go b/management/server/policy.go
index 48297ca11..9ba4f98dd 100644
--- a/management/server/policy.go
+++ b/management/server/policy.go
@@ -45,12 +45,13 @@ func (am *DefaultAccountManager) SavePolicy(ctx context.Context, accountID, user
 	}
 
 	var isUpdate = policy.ID != ""
-	var updateAccountPeers bool
+	var existingPolicy *types.Policy
 	var action = activity.PolicyAdded
 	var unchanged bool
+	var affectedPeerIDs []string
 
 	err = am.Store.ExecuteInTransaction(ctx, func(transaction store.Store) error {
-		existingPolicy, err := validatePolicy(ctx, transaction, accountID, policy)
+		existingPolicy, err = validatePolicy(ctx, transaction, accountID, policy)
 		if err != nil {
 			return err
 		}
@@ -64,25 +65,18 @@ func (am *DefaultAccountManager) SavePolicy(ctx context.Context, accountID, user
 
 			action = activity.PolicyUpdated
 
-			updateAccountPeers, err = arePolicyChangesAffectPeersWithExisting(ctx, transaction, policy, existingPolicy)
-			if err != nil {
-				return err
-			}
-
 			if err = transaction.SavePolicy(ctx, policy); err != nil {
 				return err
 			}
 		} else {
-			updateAccountPeers, err = arePolicyChangesAffectPeers(ctx, transaction, policy)
-			if err != nil {
-				return err
-			}
-
 			if err = transaction.CreatePolicy(ctx, policy); err != nil {
 				return err
 			}
 		}
 
+		groupIDs, directPeerIDs := collectPolicyAffectedGroupsAndPeers(policy, existingPolicy)
+		affectedPeerIDs = am.resolvePeerIDs(ctx, transaction, accountID, groupIDs, directPeerIDs)
+
 		return transaction.IncrementNetworkSerial(ctx, accountID)
 	})
 	if err != nil {
@@ -95,8 +89,8 @@ func (am *DefaultAccountManager) SavePolicy(ctx context.Context, accountID, user
 
 	am.StoreEvent(ctx, userID, policy.ID, accountID, action, policy.EventMeta())
 
-	if updateAccountPeers {
-		am.UpdateAccountPeers(ctx, accountID)
+	if len(affectedPeerIDs) > 0 {
+		am.UpdateAffectedPeers(ctx, accountID, affectedPeerIDs)
 	}
 
 	return policy, nil
@@ -113,7 +107,7 @@ func (am *DefaultAccountManager) DeletePolicy(ctx context.Context, accountID, po
 	}
 
 	var policy *types.Policy
-	var updateAccountPeers bool
+	var affectedPeerIDs []string
 
 	err = am.Store.ExecuteInTransaction(ctx, func(transaction store.Store) error {
 		policy, err = transaction.GetPolicyByID(ctx, store.LockingStrengthUpdate, accountID, policyID)
@@ -121,10 +115,8 @@ func (am *DefaultAccountManager) DeletePolicy(ctx context.Context, accountID, po
 			return err
 		}
 
-		updateAccountPeers, err = arePolicyChangesAffectPeers(ctx, transaction, policy)
-		if err != nil {
-			return err
-		}
+		groupIDs, directPeerIDs := collectPolicyAffectedGroupsAndPeers(policy)
+		affectedPeerIDs = am.resolvePeerIDs(ctx, transaction, accountID, groupIDs, directPeerIDs)
 
 		if err = transaction.DeletePolicy(ctx, accountID, policyID); err != nil {
 			return err
@@ -138,8 +130,8 @@ func (am *DefaultAccountManager) DeletePolicy(ctx context.Context, accountID, po
 
 	am.StoreEvent(ctx, userID, policyID, accountID, activity.PolicyRemoved, policy.EventMeta())
 
-	if updateAccountPeers {
-		am.UpdateAccountPeers(ctx, accountID)
+	if len(affectedPeerIDs) > 0 {
+		am.UpdateAffectedPeers(ctx, accountID, affectedPeerIDs)
 	}
 
 	return nil
@@ -158,44 +150,24 @@ func (am *DefaultAccountManager) ListPolicies(ctx context.Context, accountID, us
 	return am.Store.GetAccountPolicies(ctx, store.LockingStrengthNone, accountID)
 }
 
-// arePolicyChangesAffectPeers checks if a policy (being created or deleted) will affect any associated peers.
-func arePolicyChangesAffectPeers(ctx context.Context, transaction store.Store, policy *types.Policy) (bool, error) {
-	for _, rule := range policy.Rules {
-		if rule.SourceResource.Type != "" || rule.DestinationResource.Type != "" {
-			return true, nil
+// collectPolicyAffectedGroupsAndPeers returns the group IDs and direct peer IDs
+// referenced by the given policies' rules.
+func collectPolicyAffectedGroupsAndPeers(policies ...*types.Policy) (groupIDs []string, directPeerIDs []string) {
+	for _, policy := range policies {
+		if policy == nil {
+			continue
+		}
+		groupIDs = append(groupIDs, policy.RuleGroups()...)
+		for _, rule := range policy.Rules {
+			if rule.SourceResource.Type == types.ResourceTypePeer && rule.SourceResource.ID != "" {
+				directPeerIDs = append(directPeerIDs, rule.SourceResource.ID)
+			}
+			if rule.DestinationResource.Type == types.ResourceTypePeer && rule.DestinationResource.ID != "" {
+				directPeerIDs = append(directPeerIDs, rule.DestinationResource.ID)
+			}
 		}
 	}
-
-	return anyGroupHasPeersOrResources(ctx, transaction, policy.AccountID, policy.RuleGroups())
-}
-
-func arePolicyChangesAffectPeersWithExisting(ctx context.Context, transaction store.Store, policy *types.Policy, existingPolicy *types.Policy) (bool, error) {
-	if !policy.Enabled && !existingPolicy.Enabled {
-		return false, nil
-	}
-
-	for _, rule := range existingPolicy.Rules {
-		if rule.SourceResource.Type != "" || rule.DestinationResource.Type != "" {
-			return true, nil
-		}
-	}
-
-	hasPeers, err := anyGroupHasPeersOrResources(ctx, transaction, policy.AccountID, existingPolicy.RuleGroups())
-	if err != nil {
-		return false, err
-	}
-
-	if hasPeers {
-		return true, nil
-	}
-
-	for _, rule := range policy.Rules {
-		if rule.SourceResource.Type != "" || rule.DestinationResource.Type != "" {
-			return true, nil
-		}
-	}
-
-	return anyGroupHasPeersOrResources(ctx, transaction, policy.AccountID, policy.RuleGroups())
+	return
 }
 
 // validatePolicy validates the policy and its rules. For updates it returns
diff --git a/management/server/posture_checks.go b/management/server/posture_checks.go
index 9562487c0..bbf4ed198 100644
--- a/management/server/posture_checks.go
+++ b/management/server/posture_checks.go
@@ -40,9 +40,9 @@ func (am *DefaultAccountManager) SavePostureChecks(ctx context.Context, accountI
 		return nil, status.NewPermissionDeniedError()
 	}
 
-	var updateAccountPeers bool
 	var isUpdate = postureChecks.ID != ""
 	var action = activity.PostureCheckCreated
+	var affectedPeerIDs []string
 
 	err = am.Store.ExecuteInTransaction(ctx, func(transaction store.Store) error {
 		if err = validatePostureChecks(ctx, transaction, accountID, postureChecks); err != nil {
@@ -50,12 +50,10 @@ func (am *DefaultAccountManager) SavePostureChecks(ctx context.Context, accountI
 		}
 
 		if isUpdate {
-			updateAccountPeers, err = arePostureCheckChangesAffectPeers(ctx, transaction, accountID, postureChecks.ID)
-			if err != nil {
-				return err
-			}
-
 			action = activity.PostureCheckUpdated
+
+			groupIDs, directPeerIDs := collectPostureCheckAffectedGroupsAndPeers(ctx, transaction, accountID, postureChecks.ID)
+			affectedPeerIDs = am.resolvePeerIDs(ctx, transaction, accountID, groupIDs, directPeerIDs)
 		}
 
 		postureChecks.AccountID = accountID
@@ -75,8 +73,8 @@ func (am *DefaultAccountManager) SavePostureChecks(ctx context.Context, accountI
 
 	am.StoreEvent(ctx, userID, postureChecks.ID, accountID, action, postureChecks.EventMeta())
 
-	if updateAccountPeers {
-		am.UpdateAccountPeers(ctx, accountID)
+	if len(affectedPeerIDs) > 0 {
+		am.UpdateAffectedPeers(ctx, accountID, affectedPeerIDs)
 	}
 
 	return postureChecks, nil
@@ -132,27 +130,23 @@ func (am *DefaultAccountManager) ListPostureChecks(ctx context.Context, accountI
 	return am.Store.GetAccountPostureChecks(ctx, store.LockingStrengthNone, accountID)
 }
 
-// arePostureCheckChangesAffectPeers checks if the changes in posture checks are affecting peers.
-func arePostureCheckChangesAffectPeers(ctx context.Context, transaction store.Store, accountID, postureCheckID string) (bool, error) {
+// collectPostureCheckAffectedGroupsAndPeers finds all policies referencing the given posture check
+// and collects their affected group IDs and direct peer IDs.
+func collectPostureCheckAffectedGroupsAndPeers(ctx context.Context, transaction store.Store, accountID, postureCheckID string) (groupIDs []string, directPeerIDs []string) {
 	policies, err := transaction.GetAccountPolicies(ctx, store.LockingStrengthNone, accountID)
 	if err != nil {
-		return false, err
+		return nil, nil
 	}
 
 	for _, policy := range policies {
 		if slices.Contains(policy.SourcePostureChecks, postureCheckID) {
-			hasPeers, err := anyGroupHasPeersOrResources(ctx, transaction, accountID, policy.RuleGroups())
-			if err != nil {
-				return false, err
-			}
-
-			if hasPeers {
-				return true, nil
-			}
+			gIDs, pIDs := collectPolicyAffectedGroupsAndPeers(policy)
+			groupIDs = append(groupIDs, gIDs...)
+			directPeerIDs = append(directPeerIDs, pIDs...)
 		}
 	}
 
-	return false, nil
+	return groupIDs, directPeerIDs
 }
 
 // validatePostureChecks validates the posture checks.
diff --git a/management/server/route.go b/management/server/route.go
index 2b4f11d05..30297f851 100644
--- a/management/server/route.go
+++ b/management/server/route.go
@@ -147,7 +147,7 @@ func (am *DefaultAccountManager) CreateRoute(ctx context.Context, accountID stri
 	}
 
 	var newRoute *route.Route
-	var updateAccountPeers bool
+	var affectedPeerIDs []string
 
 	err = am.Store.ExecuteInTransaction(ctx, func(transaction store.Store) error {
 		newRoute = &route.Route{
@@ -173,15 +173,13 @@ func (am *DefaultAccountManager) CreateRoute(ctx context.Context, accountID stri
 			return err
 		}
 
-		updateAccountPeers, err = areRouteChangesAffectPeers(ctx, transaction, newRoute)
-		if err != nil {
-			return err
-		}
-
 		if err = transaction.SaveRoute(ctx, newRoute); err != nil {
 			return err
 		}
 
+		groupIDs, directPeerIDs := collectRouteAffectedGroupsAndPeers(newRoute)
+		affectedPeerIDs = am.resolvePeerIDs(ctx, transaction, accountID, groupIDs, directPeerIDs)
+
 		return transaction.IncrementNetworkSerial(ctx, accountID)
 	})
 	if err != nil {
@@ -190,8 +188,8 @@ func (am *DefaultAccountManager) CreateRoute(ctx context.Context, accountID stri
 
 	am.StoreEvent(ctx, userID, string(newRoute.ID), accountID, activity.RouteCreated, newRoute.EventMeta())
 
-	if updateAccountPeers {
-		am.UpdateAccountPeers(ctx, accountID)
+	if len(affectedPeerIDs) > 0 {
+		am.UpdateAffectedPeers(ctx, accountID, affectedPeerIDs)
 	}
 
 	return newRoute, nil
@@ -208,8 +206,7 @@ func (am *DefaultAccountManager) SaveRoute(ctx context.Context, accountID, userI
 	}
 
 	var oldRoute *route.Route
-	var oldRouteAffectsPeers bool
-	var newRouteAffectsPeers bool
+	var affectedPeerIDs []string
 
 	err = am.Store.ExecuteInTransaction(ctx, func(transaction store.Store) error {
 		if err = validateRoute(ctx, transaction, accountID, routeToSave); err != nil {
@@ -221,21 +218,15 @@ func (am *DefaultAccountManager) SaveRoute(ctx context.Context, accountID, userI
 			return err
 		}
 
-		oldRouteAffectsPeers, err = areRouteChangesAffectPeers(ctx, transaction, oldRoute)
-		if err != nil {
-			return err
-		}
-
-		newRouteAffectsPeers, err = areRouteChangesAffectPeers(ctx, transaction, routeToSave)
-		if err != nil {
-			return err
-		}
 		routeToSave.AccountID = accountID
 
 		if err = transaction.SaveRoute(ctx, routeToSave); err != nil {
 			return err
 		}
 
+		groupIDs, directPeerIDs := collectRouteAffectedGroupsAndPeers(routeToSave, oldRoute)
+		affectedPeerIDs = am.resolvePeerIDs(ctx, transaction, accountID, groupIDs, directPeerIDs)
+
 		return transaction.IncrementNetworkSerial(ctx, accountID)
 	})
 	if err != nil {
@@ -244,8 +235,8 @@ func (am *DefaultAccountManager) SaveRoute(ctx context.Context, accountID, userI
 
 	am.StoreEvent(ctx, userID, string(routeToSave.ID), accountID, activity.RouteUpdated, routeToSave.EventMeta())
 
-	if oldRouteAffectsPeers || newRouteAffectsPeers {
-		am.UpdateAccountPeers(ctx, accountID)
+	if len(affectedPeerIDs) > 0 {
+		am.UpdateAffectedPeers(ctx, accountID, affectedPeerIDs)
 	}
 
 	return nil
@@ -261,19 +252,17 @@ func (am *DefaultAccountManager) DeleteRoute(ctx context.Context, accountID stri
 		return status.NewPermissionDeniedError()
 	}
 
-	var route *route.Route
-	var updateAccountPeers bool
+	var rt *route.Route
+	var affectedPeerIDs []string
 
 	err = am.Store.ExecuteInTransaction(ctx, func(transaction store.Store) error {
-		route, err = transaction.GetRouteByID(ctx, store.LockingStrengthUpdate, accountID, string(routeID))
+		rt, err = transaction.GetRouteByID(ctx, store.LockingStrengthUpdate, accountID, string(routeID))
 		if err != nil {
 			return err
 		}
 
-		updateAccountPeers, err = areRouteChangesAffectPeers(ctx, transaction, route)
-		if err != nil {
-			return err
-		}
+		groupIDs, directPeerIDs := collectRouteAffectedGroupsAndPeers(rt)
+		affectedPeerIDs = am.resolvePeerIDs(ctx, transaction, accountID, groupIDs, directPeerIDs)
 
 		if err = transaction.DeleteRoute(ctx, accountID, string(routeID)); err != nil {
 			return err
@@ -285,10 +274,10 @@ func (am *DefaultAccountManager) DeleteRoute(ctx context.Context, accountID stri
 		return fmt.Errorf("failed to delete route %s: %w", routeID, err)
 	}
 
-	am.StoreEvent(ctx, userID, string(route.ID), accountID, activity.RouteRemoved, route.EventMeta())
+	am.StoreEvent(ctx, userID, string(rt.ID), accountID, activity.RouteRemoved, rt.EventMeta())
 
-	if updateAccountPeers {
-		am.UpdateAccountPeers(ctx, accountID)
+	if len(affectedPeerIDs) > 0 {
+		am.UpdateAffectedPeers(ctx, accountID, affectedPeerIDs)
 	}
 
 	return nil
@@ -377,23 +366,20 @@ func getPlaceholderIP() netip.Prefix {
 	return netip.PrefixFrom(netip.AddrFrom4([4]byte{192, 0, 2, 0}), 32)
 }
 
-// areRouteChangesAffectPeers checks if a given route affects peers by determining
-// if it has a routing peer, distribution, or peer groups that include peers.
-func areRouteChangesAffectPeers(ctx context.Context, transaction store.Store, route *route.Route) (bool, error) {
-	if route.Peer != "" {
-		return true, nil
+// collectRouteAffectedGroupsAndPeers returns group IDs and direct peer IDs from the given routes.
+func collectRouteAffectedGroupsAndPeers(routes ...*route.Route) (groupIDs []string, directPeerIDs []string) {
+	for _, r := range routes {
+		if r == nil {
+			continue
+		}
+		groupIDs = append(groupIDs, r.Groups...)
+		groupIDs = append(groupIDs, r.PeerGroups...)
+		groupIDs = append(groupIDs, r.AccessControlGroups...)
+		if r.Peer != "" {
+			directPeerIDs = append(directPeerIDs, r.Peer)
+		}
 	}
-
-	hasPeers, err := anyGroupHasPeersOrResources(ctx, transaction, route.AccountID, route.Groups)
-	if err != nil {
-		return false, err
-	}
-
-	if hasPeers {
-		return true, nil
-	}
-
-	return anyGroupHasPeersOrResources(ctx, transaction, route.AccountID, route.PeerGroups)
+	return
 }
 
 // GetRoutesByPrefixOrDomains return list of routes by account and route prefix
diff --git a/management/server/store/sql_store.go b/management/server/store/sql_store.go
index 0a716d08d..c285b70c7 100644
--- a/management/server/store/sql_store.go
+++ b/management/server/store/sql_store.go
@@ -4662,6 +4662,23 @@ func (s *SqlStore) GetPeersByGroupIDs(ctx context.Context, accountID string, gro
 	return peers, nil
 }
 
+func (s *SqlStore) GetPeerIDsByGroups(ctx context.Context, accountID string, groupIDs []string) ([]string, error) {
+	if len(groupIDs) == 0 {
+		return nil, nil
+	}
+
+	var peerIDs []string
+	result := s.db.Model(&types.GroupPeer{}).
+		Select("DISTINCT peer_id").
+		Where("account_id = ? AND group_id IN ?", accountID, groupIDs).
+		Pluck("peer_id", &peerIDs)
+	if result.Error != nil {
+		return nil, status.Errorf(status.Internal, "failed to get peer IDs by groups: %s", result.Error)
+	}
+
+	return peerIDs, nil
+}
+
 func (s *SqlStore) GetUserIDByPeerKey(ctx context.Context, lockStrength LockingStrength, peerKey string) (string, error) {
 	tx := s.db
 	if lockStrength != LockingStrengthNone {
diff --git a/management/server/store/store.go b/management/server/store/store.go
index 0d8b0678a..82489615f 100644
--- a/management/server/store/store.go
+++ b/management/server/store/store.go
@@ -159,6 +159,7 @@ type Store interface {
 	GetPeerByID(ctx context.Context, lockStrength LockingStrength, accountID string, peerID string) (*nbpeer.Peer, error)
 	GetPeersByIDs(ctx context.Context, lockStrength LockingStrength, accountID string, peerIDs []string) (map[string]*nbpeer.Peer, error)
 	GetPeersByGroupIDs(ctx context.Context, accountID string, groupIDs []string) ([]*nbpeer.Peer, error)
+	GetPeerIDsByGroups(ctx context.Context, accountID string, groupIDs []string) ([]string, error)
 	GetAccountPeersWithExpiration(ctx context.Context, lockStrength LockingStrength, accountID string) ([]*nbpeer.Peer, error)
 	GetAccountPeersWithInactivity(ctx context.Context, lockStrength LockingStrength, accountID string) ([]*nbpeer.Peer, error)
 	GetAllEphemeralPeers(ctx context.Context, lockStrength LockingStrength) ([]*nbpeer.Peer, error)
diff --git a/management/server/store/store_mock.go b/management/server/store/store_mock.go
index beee13d96..70366ed44 100644
--- a/management/server/store/store_mock.go
+++ b/management/server/store/store_mock.go
@@ -178,6 +178,7 @@ func (mr *MockStoreMockRecorder) GetClusterSupportsCrowdSec(ctx, clusterAddr int
 	mr.mock.ctrl.T.Helper()
 	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "GetClusterSupportsCrowdSec", reflect.TypeOf((*MockStore)(nil).GetClusterSupportsCrowdSec), ctx, clusterAddr)
 }
+
 // Close mocks base method.
 func (m *MockStore) Close(ctx context.Context) error {
 	m.ctrl.T.Helper()
@@ -1852,6 +1853,21 @@ func (mr *MockStoreMockRecorder) GetPeersByGroupIDs(ctx, accountID, groupIDs int
 	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "GetPeersByGroupIDs", reflect.TypeOf((*MockStore)(nil).GetPeersByGroupIDs), ctx, accountID, groupIDs)
 }
 
+// GetPeerIDsByGroups mocks base method.
+func (m *MockStore) GetPeerIDsByGroups(ctx context.Context, accountID string, groupIDs []string) ([]string, error) {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "GetPeerIDsByGroups", ctx, accountID, groupIDs)
+	ret0, _ := ret[0].([]string)
+	ret1, _ := ret[1].(error)
+	return ret0, ret1
+}
+
+// GetPeerIDsByGroups indicates an expected call of GetPeerIDsByGroups.
+func (mr *MockStoreMockRecorder) GetPeerIDsByGroups(ctx, accountID, groupIDs interface{}) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "GetPeerIDsByGroups", reflect.TypeOf((*MockStore)(nil).GetPeerIDsByGroups), ctx, accountID, groupIDs)
+}
+
 // GetPeersByIDs mocks base method.
 func (m *MockStore) GetPeersByIDs(ctx context.Context, lockStrength LockingStrength, accountID string, peerIDs []string) (map[string]*peer.Peer, error) {
 	m.ctrl.T.Helper()