cant take backup after cucm upgrade 9.1.1 to 9.1.2

[baselzind]

i upgraded cucm from 9.1.1 to 9.1.2 , but after upgrade i cant take backup as shown in the screenshot ,i checked DB replication and it is fine between the two, i tried restarting DFR local & master on both Pub+sub but with no use , please help

[Maren Mahoney · Accepted solution]

One thing that will cause this error message is a problem with the IPSec certificates on the Pub and/or Sub. (Expiry, corruption, etc.) Given that you have just upgraded, this would be the first thing I'd look at. The fix in that case would be to regenerate the IPSec.pem certificates.

1. Regenerate the certificates.
2. Restart the DRF Master and DRF Local agent services on the Pub.
3. Restart the DRF Local agent service on the Sub(s).
4. Try the backup again.

Let us know how it goes.