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40 lines
1.3 KiB
Markdown
40 lines
1.3 KiB
Markdown
---
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title: WindowsNetworkErrors
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---
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## Meaning
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The sum of inbound and outbound packet error rates exceeds the configured
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threshold for 15 minutes. The default is one error per second per interface.
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The alert identifies the interface using its `nic` label.
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## Impact
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Packet errors may cause retransmissions, lower throughput, and intermittent
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connection failures.
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## Diagnosis
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1. Inspect `windows:net_received_errors:rate` and
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`windows:net_outbound_errors:rate` separately to identify the direction.
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2. Compare traffic and `windows:net_received_utilization:ratio` and
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`windows:net_sent_utilization:ratio` with the normal baseline. These ratios
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use bandwidth in bytes per second and keep each direction separate.
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3. Inspect local adapter state and counters:
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```powershell
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Get-NetAdapter
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Get-NetAdapterStatistics
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```
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4. Inspect switch-port counters, cabling, link negotiation, NIC drivers, and
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System event logs. For virtual NICs, inspect the host and virtual switch.
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## Mitigation
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Repair faulty links or switch ports and correct driver or adapter configuration
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problems. Apply driver and firmware fixes through the normal change process.
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Relieve congestion if it contributes. Verify errors stop increasing and affected
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application connections recover; cumulative counters do not need to return to
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zero for the rate alert to resolve.
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