Goodwe integration stops working after reboot

Third party integrations
1

I’m really happy with homeassistant and goode-integration until today. After reboot the host-system it’s stopped working.
What I have analysed :

  1. Debug-Log enabled
2026-03-18 11:07:41.665 DEBUG (MainThread) [goodwe] Probing DT inverter at xxx.xxx.x.158.
2026-03-18 11:07:41.665 DEBUG (MainThread) [goodwe.protocol] Creating lock instance for current event loop.
2026-03-18 11:07:41.665 DEBUG (MainThread) [goodwe.protocol] Opening connection.
2026-03-18 11:07:44.736 DEBUG (MainThread) [goodwe.protocol] Connection refused error.
....
2026-03-18 11:08:49.251 DEBUG (MainThread) [goodwe] Connecting to ET family inverter at xxx.xxx.x.158:8899.
2026-03-18 11:08:49.251 DEBUG (MainThread) [goodwe.protocol] Creating lock instance for current event loop.
2026-03-18 11:08:49.258 DEBUG (MainThread) [goodwe.protocol] Sending: READ 33 registers from 35000 (f70388b800213ac1)
2026-03-18 11:08:50.263 DEBUG (MainThread) [goodwe.protocol] Failed to receive response to READ 33 registers from 35000 (f70388b800213ac1) in time (1s).
2026-03-18 11:08:50.265 DEBUG (MainThread) [goodwe.protocol] Socket closed.
  1. Based on documentation UDP 8899 is the relevant port. Based on fritz.box the ip is correct
  2. Started Homeassistant another device with no success. Tried with ghcr.io/home-assistant/home-assistant:2026.3.1 and ghcr.io/home-assistant/home-assistant:latest
  3. nc -zvu xxx.xxx.x.158 8899 on both host systems. Result open
  4. nc -zvu xxx.xxx.x.158 8899 from the homeassistant-container. Result open.

Any idea how to solve this?

2

After a reboot of the goodwe device it works now. Any idea how to prevent such situation? To stop all power in the house is not a nice solution.