Merge pull request #108887 from lahinson/osdocs-17688-hcp-known-issue-konnectivity-route

[OSDOCS-17688]: Adding known issue about egressIP failures

Author: lahinson

modules/hcp-release-notes-known-issues.adoc

@@ -45,4 +45,9 @@ $ oc get agents -A
 
 * In {hcp} on {VirtProductName}, if you store all hosted cluster information in a shared namespace and then back up and restore a hosted cluster, you might unintentionally change other hosted clusters. To avoid this issue, back up and restore only hosted clusters that use labels, or avoid storing all hosted cluster information in a shared namespace.
 
-* For version 4.21, {hcp} pins all Cluster API images to the `4.20.10-multi` release image for compatibility reasons. {hcp-capital} pins the images when Cluster API deployments are generated. The `4.20.10-multi` image must always be mirrored and available in order for the Cluster API to work with {hcp} version 4.21.
+* For version 4.21, {hcp} pins all Cluster API images to the `4.20.10-multi` release image for compatibility reasons. {hcp-capital} pins the images when Cluster API deployments are generated. The `4.20.10-multi` image must always be mirrored and available in order for the Cluster API to work with {hcp} version 4.21.
+
+* Intermittent egressIP outages occur when a hosted cluster uses the following combined settings:
+
+** The service publishing strategy for the `Konnectivity` service is set to `Route`.
+** The management cluster uses Virtual Router Redundancy Protocol (VRRP) VIP for ingress.