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Hmmm. Tough one.

Troubleshooting from the system point of view, a "broken pipe" is very typical of network, but could be that one of the programs died, either the "talker" or the "listener".

Any PID changes suggesting if any of them died ?

Instead of using the name of the computer (supposing you are), have you tried:


cheat your hosts file to always point the machine to its IP

have only one IP

check system logs for errors.