While initializing TCP/IP communications for administrative sessions, the server failed to connect to a master socket to listen for clients. The reason code is the return code from the TCP/IP bind API.
Server operation continues, but the server cannot accept administrative sessions from clients using the TCP/IP protocol. This also includes server-server sessions, storage agent to server sessions, and library client to server sesssions.
Ensure that no other application is using the port number specified in the server options file with the TCPADMINPORT option. If the server was brought down and client sessions were active, it can be necessary to end the client sessions on the client systems before the port can be freed.