I am guessing that this is Sybase ASA. This may solve your problem:
'Adaptive Server Anywhere, ASA, SQL Anywhere, SQL Any, Client/Server Network connection.
When running Winsock Proxy Service 2.0 TCP/IP doesn't initialize with the message "server name already in use"
The problem is that winsock proxy server will broadcast to the INTERNET on all ports. You may receive server name already in use because there is a reply to the broadcast from somewhere on the Internet.
The resolution is to specify DOBROADCAST=NO in tcpip parameters to prevent the broadcast. This will normally be used in combination with the HOST=... parameter.'