Unable to Backp IM and Presense

[jakins12]

I have an IM and Presence server that I cannot manage backups on.  version  9.1.1.41900-1

utils disaster_reovery device list       gives the following error.  

Unable to connect to Master Agent host: Presence, Port: 4040. This may be due to Master or Local Agent being down.

I have restarted the services and server without any success.

[Jaime Valencia]

Are all your certificates still valid?

Or are some of them expired?

[jakins12]

a few were expired.  I regenerated them and then restarted both DRF services.  Resulting in the same error.

[Slavik Bialik]

Do you happen to have firewall between some of the cluster nodes?

If so, it is because port 4040 is probably blocked in the Firewall between one of the subscriber / IM&P nodes to the main Master Agent service that's on the CUCM Publisher.

You can see it in the port usage guide for CUCM:

http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/port/9_0_1/CUCM_BK_T98E8963_00_tcp-port-usage-guide-90/CUCM_BK_T98E8963_00_tcp-port-usage-guide-90_chapter_01.html

BTW, I had the same issue once. The port was blocked.