FILESTREAM File I/O access is enabled. One or more availability groups ('%1!s!') currently do not have a listener. A FILESTREAM ...

FILESTREAM File I/O access is enabled. One or more availability groups ('%1!s!') currently do not have a listener.  A FILESTREAM PathName will be unable to refer to a virtual network name (VNN) and, instead, will need to refer to a physical Windows Server Failover Clustering (WSFC) node. This might limit the usability of FILESTEAM File I/0 access after an availability group failover. Therefore, we recommend that you create a listener for each availability group. For information about how to create an availability group listener, see SQL Server Books Online.