Connection to the Server cannot be established (Unable to access Remote Node)

[Daniel Azuara Torres]

Hi,

I have migrated from cisco call manager 4.1.3 to cucm 7.1.5, every change that I have made is replicated to de suscriber without problems (phones, css, partitions, locations, etc) but when I need to active or to stop any service to suscriber from publisher display a error that say:

"Connection to the Server cannot be established (Unable to access Remote Node)"

I verify commands show network cluster, utils ntp status and all is ok, Publisher can ping suscriber and viceversa.

Somebody can help me with this?

[pblakeslee]

Yes, thanks!

All is well again on my cluster (10.5 CUCM).

[ROBERT SCHAUFLER]

It's my understanding that regenerating both the Callmanager.pem and TVS.pem  files will cause authentication issues for the phones.  

Just in case and to be safe, after regenerating the Callmanager.pem certificate, restart TFTP and TVS services and reset the phones before regenerating the TVS.pem certificate.

See this post for more detail:

https://supportforums.cisco.com/document/68701/communications-manager-security-default-and-itl-operation-and-troubleshooting#Regenerating_Certificates_Rebuilding_a_Cluster_Certificate_Expiry