Trying to setup an AlwaysOn Listener after AG has been created is raising an error. The error message is incorrect.
Msg 19471, Level 16, State 0, Line 1
The WSFC cluster could not bring the Network Name resource with DNS name 'DELL_AG1_Listener' online. The DNS name may have been taken or have a conflict with existing name services, or the WSFC cluster service may not be running or may be inaccessible. Use a different DNS name to resolve name conflicts, or check the WSFC cluster log for more information.
Msg 19476, Level 16, State 4, Line 1
The attempt to create the network name and IP address for the listener failed. The WSFC service may not be running or may be inaccessible in its current state, or the values provided for the network name and IP address may be incorrect. Check the state of the WSFC cluster and validate the network name and IP address with the network administrator.