While working on a recent CUCM 10.5 install i encountered the error "CUCM IM Presence 10.5 : Cannot assign users to a server that is not in valid state" while assigning new users to IM presence group.In the beginning i restarted both IM presence servers multiple time but that did not helped. I
also shutdown the backup IMP server completely but no luck, i then shut the publisher IMP server and same thing. I was so hesitant to remove the existing users from the IMP presence as they were working fine and i do not wanted to disrupt their operation. I even did a db replication but no luck.
FYI: I have high availability enabled
Finally this is what i had to do to fix the problem.
Unassign all users from IMP redundancy group then stop these services on IMP pub and Sub one by one.
Cisco Presence Engine
Cisco SIP Proxy
Cisco XCP Router
Cisco Sync Agent
Cisco Client Profile Agent
bring the above services up first on IMP PUB and SUB and then try assigning users to presence servers from CUCM end user management window. It took sometime after services were up for me to actually able to assign users to IMP.
Monitor the IMP redundancy group server status from IM presence redundancy group from CUCM admin page, this is different in ver 10.x as this window is usually in IMP server administration in earlier versions.
If required try to failover the service from PUB to SUB or SUB to PUB from IMP redundancy group.
HTH
