diff --git a/self-host/advanced/wild-card-domains.mdx b/self-host/advanced/wild-card-domains.mdx
index 5a5b3b4..a3db599 100644
--- a/self-host/advanced/wild-card-domains.mdx
+++ b/self-host/advanced/wild-card-domains.mdx
@@ -255,6 +255,8 @@ Traefik supports most DNS providers. You can find a full list of supported provi
   - Check API token permissions and scope
   - Ensure DNS propagation has completed
   - Review provider-specific configuration
+  - If your DNS provider has a firewall in place, ensure it allows incoming DNS traffic (typically UDP on port **53**). Adding an ingress rule to permit such traffic may help resolve the issue, especially if the firewall is stateless.
+
 </Accordion>
 
 <Accordion title="Old certificates still being used">
@@ -262,4 +264,4 @@ Traefik supports most DNS providers. You can find a full list of supported provi
   
   **Solution**: Delete the `acme.json` file to force new certificate generation.
 </Accordion>
-</AccordionGroup>
\ No newline at end of file
+</AccordionGroup>