After implementation, Avaya Aura® Session Manager (SM) replication status is Not Polling and the replica node is not reachable. The network connectivity has been verified, and so has the correct DNS…

After implementation, Avaya Aura® Session Manager (SM) replication status is Not Polling and the replica node is not reachable. The network connectivity has been verified, and so has the correct DNS configuration. Although Avaya Aura® System Manager (SMGR) cannot connect to SM, it can connect to other network components. Based on an analysis of what is working and not working, where should the administrator try to isolate the issue?