TCP reconnection, WebSocket closure on home automation system

asked 2024-11-09 03:17:34 +0000

tfmeier gravatar image

updated 2024-11-09 03:21:09 +0000

Hi guys, I'm troubleshooting a connection lost message. Infrastructure: I have a UDM Dream Machine, a Win11 laptop (192.168.2.27) and a Fedora Server running home automation (192.168.2.99). The Win11 laptop accesses the front end of the home automation system. I usually have everything behind a managed switch but to eliminate the network as much as possible I have both the Fedora server and the Win11 laptop on Ethernet ports on the UDM Dream machine.

https://imgur.com/SKYtSK9

I get these 'Connection lost. Reconnecting...' errors and as you can see from the screenshot this is where traffic stops and I get these TCP Retransmission messages and some time later the WebSocket closure message on the home automation system. I have no idea whether there's an issue on the UDM which leads to the closure of the WebSocket or the home automation system having an issue. How do I troubleshoot this? FYI, I have a video showing the flow of messages as I lose connection in case this is of any help.

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