AG Certificate Incompatibility with Mixed Clusters

Summary

When running DxEnterprise clusters with mixed versions that have availability groups deployed, certificate mismatches can be encountered when trying to add new availability groups and/or trying to add new members to existing availability groups.

Information

This issue may be encountered when a cluster has DxEnterprise v21 (and older) mixed with DxEnterprise v22 (and newer) running in the same cluster that has availability groups under management.

Resolution

Upgrade all cluster members to the latest version of DxEnterprise and then retry the operation.