Paramiko Server -- Exception (server): Error reading SSH protocol banner

[Gribouillis]

Paramiko ought to capture this as a feature.

Issue a bug report to Paramiko's maintainers You could also look into the source code to see why the exception is not handled by the calling thread.

traceback error can't be gracefully handled

See if you can do something by overrinding temporarily
threading.excepthook

while True:

Why a loop? Why not just event.wait()?