We have a two node cluster built on Windows Server 2012 R2 with SQL Server 2012. This is a multi subnet configuration. I have tested the failover of the windows cluster and the availability group. Everything works as expected. In testing the connectivity to listener I open SSMS and can connect to the instance using the Listener name but only from the primary node. I cannot open the instance when logged into the secondary node using the listener name. I can ping the listener IP from the secondary node.