Multiple error messages at once, with and without add-ons enabled

[kelciour]

I have been trying reconnect but ain't happening

Maybe it’s a similar error as in Mailman 3 Looking for volunteers to test Tulip on Windows - Python-Dev - python.org SSLError(1, ‘[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:553)’) is being raised in _on_handshake(). This seems to result in the socket being closed without being unregistered from the selector. select() fails before the SSLError gets reported, so it does not appear in the traceback. No idea if it helps, but try to turn off a proxy server (or VPN…