Can you make sure that SNMP Master Agent under Control Center - Network Services and Cisco CallManager SNMP Service under Control Center - Feature Services for all the CM servers in the cluster is started.
After this, suspend and delet the subscribers and the publisher from Prime Collaboration and restart the cpcm application.After CPCM comes back, initiated a discovery on the publisher again using default credentials and see if that helps.
Try below steps only if the issue still persists after following the above steps
1. Login to PCA as globaladmin
2. Make a note of all IP address for every CUCM node currently listed (including the decommissioned that aren't in DWC)
3. In DWC, suspend all CUCM nodes and then delete all CUCM nodes
4. Navigate to the below URL - Copy and paste the below URL to the same browser window after replacing the correct PCA server IP address and CUCM node IP address
a. https://PCAServerIPAddress/emsam/service/inventory/delete?deviceIP=IPAddressoftheCUCM
b. Run this command for every CUCM node gathered on step 2 above.
c. For each delete, you should receive a success confirmation message in the browser. Please ensure you're using a supported browser version. (FF 24 or 31 ESR, IE 10 or 11).
5. Restart PCA services via admin user in CLI
a. Stop application cpcm
b. Show application status cpcm (wait until every service has stopped)
c. Start application cpcm (you should have a total of 26 services)
6. Navigate back to DWC and re-discovery only the CUCM publisher for each cluster
a. Note that under Manage Credentials > Profile Name, your Device Type needs to be CISCO UNIFIED COMMUNICATIONS MANAGER
After 5-15 minutes all nodes should be in a Managed state if they were successfully discovered and the type should be, Communications Manager.
Regards
Deepak
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