ESPHome API connection fails after Home Assistant 2025.11.3 update (SOCKET_READ_FAILED errno=104)

ESPHome
1

Hello,

After updating Home Assistant to version 2025.11.3, my ESPHome devices keep disconnecting immediately.
I see the following warning in the ESPHome logs:

[10:06:47.422][W][api.connection:1889]: Home Assistant 2025.11.3 (192.168.0.157): Reading failed SOCKET_READ_FAILED errno=104

My setup:

  • Home Assistant 2025.11.3 (running on [your platform])
  • ESPHome devices connected via Wi-Fi
  • Issue occurs immediately after HA restart
  • Works fine on previous version (2025.10.x)

Has anyone else experienced this? Is this a known bug in 2025.11.3? Any suggestions for a fix or workaround?

Thank you!

2

Are you running any weird non esphome packages. I was getting same error when running a 3rd party component.

My guess is something in the yaml probably.
You could remove all , then go domain by domain adding one by one and recompile til you find domain causing issue.

SO

First compile/run/verify with just WiFi connection
Next compile/run/vertify with WiFi+sensor
Then c/r/v with WiFi+sensor+ light and so on

3

Thanks for the suggestion! I’ve already fixed the issue. After the update I had to re-edit the ESP device configuration and reconnect each device to Wi-Fi one by one. Everything works fine now. Thanks again!

4

Nice that you resolved it.
You could explain little better what you did for forum members that might have similar issues.

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