Hello,
I have one internal domain "domain-a.com" with a top level domain "XYZ.com" for enduser clients. Jabber is working fine there.
The administrators are in a seperate domain "domain-b.com". There is conditional forwarding from "domain-b.com" to "domain-a.com" configured. In this domain I get the error "cannot communicate with the server".
Im using one CUCM Cluster Version 12.5 and one IMP Subcluster Version 12.5 in "domain-a.com".
In the jabber logs I can often see an error "Failed to load the encrypt key of category CONFIGURATION".
Dont know if im on the wrong path there.