[Python] ConnectionResetError when sending messages to MS Teams Bot after inactivity period

While developing a bot for Microsoft Teams using Python, based on the official Microsoft sample code from Microsoft-Teams-Samples/samples/app-hello-world.

The bot works initially and can receive and respond to messages. However, if there's an idle period of 2 minutes between messages, the connection drops and I receive the following error:


ConnectionError(ProtocolError('Connection aborted.', ConnectionResetError(104, 'Connection reset by peer')))

ClientRequestError from msrest.exceptions



Sending another message right after it works correctly.

What I've Tried

• Confirmed the issue occurs consistently after 2 minutes of inactivity. (bot-conversation-quickstart)

• 
  The issue reproduces in production (though with another bot on a remote server).
  
  
• 
  The issue is consistent in production on a remote server. Could be related to proxy keep-alive configs, but I could be wrong.
  
  
• 
  Tried the same scenario from csharp examples and couldn't reproduce the issue. Didn't test it in production, though.
  

I suspect this might be related to Bot Framework SDK in python, but I need guidance on how to properly address this issue.

Any help or insights would be greatly appreciated!

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