SQL 2012 Active Active Two-Node Cluster + Stand Alone SQL 2012 Instance

I have an existing 2 node active/active SQL 2012 FCI using local storage for TempDB. I added another standalone instance of SQL 2012 on the WSFC (I want to reiterate the fact that it's a standalone instance not clustered). The standalone instance is using local storage and works fine when Node1 is active but if the instance that resides primarily on Node1 fails-over than the stand-alone instance stops accepting connections but SQL Server Service is still up and running. I'm not sure what the issue could be we're using static ports 1433 for the clustered instances and 49664 for the stand-alone instance. Does anybody have any experience with this type of setup?

Johnny