We are currently unable to logon to OWA and ECP. After entering our admin crendentials, we get an ERROR 500 on the browser. Looking at the Events for exchange, we see this error often:
Event ID: 2121
The Microsoft Exchange Replication service failed to start the TCP listener. Error: System.Net.Sockets.SocketException (0x80004005): An attempt was made to access a socket in a way forbidden by its access permissions at System.Net.Sockets.Socket.DoBind(EndPoint endPointSnapshot, SocketAddress socketAddress) at System.Net.Sockets.Socket.Bind(EndPoint localEP) at Microsoft.Exchange.Cluster.Replay.TcpListener.StartListening(Config cfg)
Following some guides out there, we have removed and created the OwaVirtualDirectory in Exchange Management Shell. Don't know where to go from here.