I think these error messages are too generic to give a sensible answer.
What errors do you see in the logs?
12568: [TCPIP-client] recv() failed for sd=4780 (err=10054 | An existing connection was forcibly closed by the remote host (peer).)
(srmconn.cpp (933) err=1180671 sys=0) SBL-NET-01023: Peer disconnected
(srmconn.cpp (933) err=1311734 sys=126) SBL-SVR-01014: Internal: Could not send the HELLO message: (null)