[Bug]: Failed to read register 30000 after 6 tries

[SvenAbels]

Describe the issue

I got a SUN2000-10KTL connected via the sDongle with a LAN cable. I'm using firmware V100R001C00SPC156 and the version 1.5.4 of the Huawei integration. Everything worked well for months but since this afternoon, no conection can be established by the extension. I already restarted Home Assistant but without success. In can still pink the dongle with the local IP and the values show up fine in fusionsolar.

When looking at the extension page, I can see the following error: "Failed to read register 30000 after 6 tries"

Describe your Huawei Solar Setup

Inverter Type: SUN2000-10KTL
Inverter Firmware version: V100R001C00SPC156
sDongle present: Yes
sDongle Type: sDongleA-05 (WiFi / Ethernet)
sDongle Connectivitiy: Ethernet
sDongle Firmware: V200R022C10SPC108
Power meter present: three phase
Optimizers Present: No
Battery: LUNA2000
Battery Firmware version: V100R002C00SPC123
Huawei Solar integration version: 1.5.4

How do you connect to the inverter?

Via the SDongle, wired connection

Upload your Diagnostics File

Drag & Drop your Diagnostics File here.

home-assistant_huawei_solar_2025-02-26T21-59-58.873Z.log

Upload your relevant debug logs

2025-02-26 22:48:27.958 INFO (MainThread) [backoff] Backing off _do_read(...) for 1.0s (huawei_solar.exceptions.ConnectionInterruptedException: Modbus client is not connected to the inverter)
2025-02-26 22:48:28.959 ERROR (MainThread) [huawei_solar.huawei_solar] Modbus client is not connected to the inverter
NoneType: None
2025-02-26 22:48:28.960 INFO (MainThread) [backoff] Backing off _do_read(...) for 2.0s (huawei_solar.exceptions.ConnectionInterruptedException: Modbus client is not connected to the inverter)
2025-02-26 22:48:30.962 ERROR (MainThread) [huawei_solar.huawei_solar] Modbus client is not connected to the inverter
NoneType: None
2025-02-26 22:48:30.962 INFO (MainThread) [backoff] Backing off _do_read(...) for 4.0s (huawei_solar.exceptions.ConnectionInterruptedException: Modbus client is not connected to the inverter)
2025-02-26 22:48:34.964 ERROR (MainThread) [huawei_solar.huawei_solar] Modbus client is not connected to the inverter
NoneType: None
2025-02-26 22:48:34.964 INFO (MainThread) [backoff] Backing off _do_read(...) for 8.0s (huawei_solar.exceptions.ConnectionInterruptedException: Modbus client is not connected to the inverter)
2025-02-26 22:48:42.966 ERROR (MainThread) [huawei_solar.huawei_solar] Modbus client is not connected to the inverter
NoneType: None
2025-02-26 22:48:42.966 INFO (MainThread) [backoff] Backing off _do_read(...) for 16.0s (huawei_solar.exceptions.ConnectionInterruptedException: Modbus client is not connected to the inverter)
2025-02-26 22:48:58.968 ERROR (MainThread) [huawei_solar.huawei_solar] Modbus client is not connected to the inverter
NoneType: None
2025-02-26 22:48:58.968 ERROR (MainThread) [backoff] Giving up _do_read(...) after 6 tries (huawei_solar.exceptions.ConnectionInterruptedException: Modbus client is not connected to the inverter)
2025-02-26 22:49:10.560 ERROR (MainThread) [huawei_solar.huawei_solar] Modbus client is not connected to the inverter
NoneType: None
2025-02-26 22:49:10.560 INFO (MainThread) [backoff] Backing off _do_read(...) for 1.0s (huawei_solar.exceptions.ConnectionInterruptedException: Modbus client is not connected to the inverter)
2025-02-26 22:49:11.561 ERROR (MainThread) [huawei_solar.huawei_solar] Modbus client is not connected to the inverter
NoneType: None
2025-02-26 22:49:11.561 INFO (MainThread) [backoff] Backing off _do_read(...) for 2.0s (huawei_solar.exceptions.ConnectionInterruptedException: Modbus client is not connected to the inverter)
2025-02-26 22:49:13.563 ERROR (MainThread) [huawei_solar.huawei_solar] Modbus client is not connected to the inverter
NoneType: None
2025-02-26 22:49:13.563 INFO (MainThread) [backoff] Backing off _do_read(...) for 4.0s (huawei_solar.exceptions.ConnectionInterruptedException: Modbus client is not connected to the inverter)
2025-02-26 22:49:17.564 ERROR (MainThread) [huawei_solar.huawei_solar] Modbus client is not connected to the inverter
NoneType: None
2025-02-26 22:49:17.565 INFO (MainThread) [backoff] Backing off _do_read(...) for 8.0s (huawei_solar.exceptions.ConnectionInterruptedException: Modbus client is not connected to the inverter)
2025-02-26 22:49:25.568 ERROR (MainThread) [huawei_solar.huawei_solar] Modbus client is not connected to the inverter
NoneType: None
2025-02-26 22:49:25.569 INFO (MainThread) [backoff] Backing off _do_read(...) for 16.0s (huawei_solar.exceptions.ConnectionInterruptedException: Modbus client is not connected to the inverter)
2025-02-26 22:49:41.570 ERROR (MainThread) [huawei_solar.huawei_solar] Modbus client is not connected to the inverter
NoneType: None
2025-02-26 22:49:41.571 ERROR (MainThread) [backoff] Giving up _do_read(...) after 6 tries (huawei_solar.exceptions.ConnectionInterruptedException: Modbus client is not connected to the inverter)
2025-02-26 22:50:03.346 ERROR (MainThread) [huawei_solar.huawei_solar] Modbus client is not connected to the inverter
NoneType: None
2025-02-26 22:50:03.347 INFO (MainThread) [backoff] Backing off _do_read(...) for 1.0s (huawei_solar.exceptions.ConnectionInterruptedException: Modbus client is not connected to the inverter)
2025-02-26 22:50:04.348 ERROR (MainThread) [huawei_solar.huawei_solar] Modbus client is not connected to the inverter
NoneType: None
2025-02-26 22:50:04.349 INFO (MainThread) [backoff] Backing off _do_read(...) for 2.0s (huawei_solar.exceptions.ConnectionInterruptedException: Modbus client is not connected to the inverter)
2025-02-26 22:50:06.349 ERROR (MainThread) [huawei_solar.huawei_solar] Modbus client is not connected to the inverter
NoneType: None
2025-02-26 22:50:06.350 INFO (MainThread) [backoff] Backing off _do_read(...) for 4.0s (huawei_solar.exceptions.ConnectionInterruptedException: Modbus client is not connected to the inverter)
2025-02-26 22:50:10.607 ERROR (MainThread) [huawei_solar.huawei_solar] Modbus client is not connected to the inverter
NoneType: None
2025-02-26 22:50:10.608 INFO (MainThread) [backoff] Backing off _do_read(...) for 8.0s (huawei_solar.exceptions.ConnectionInterruptedException: Modbus client is not connected to the inverter)
2025-02-26 22:50:10.614 WARNING (Recorder) [homeassistant.components.sensor.recorder] The unit of sensor.gesamtstrombedarf_powerofhome_riemann_links (None) cannot be converted to the unit of previously compiled statistics (kWh). Generation of long term statistics will be suppressed unless the unit changes back to kWh or a compatible unit. Go to https://my.home-assistant.io/redirect/developer_statistics to fix this
2025-02-26 22:50:18.609 ERROR (MainThread) [huawei_solar.huawei_solar] Modbus client is not connected to the inverter
NoneType: None
2025-02-26 22:50:18.610 INFO (MainThread) [backoff] Backing off _do_read(...) for 16.0s (huawei_solar.exceptions.ConnectionInterruptedException: Modbus client is not connected to the inverter)
2025-02-26 22:50:34.612 ERROR (MainThread) [huawei_solar.huawei_solar] Modbus client is not connected to the inverter
NoneType: None
2025-02-26 22:50:34.612 ERROR (MainThread) [backoff] Giving up _do_read(...) after 6 tries (huawei_solar.exceptions.ConnectionInterruptedException: Modbus client is not connected to the inverter)
2025-02-26 22:51:16.290 ERROR (MainThread) [huawei_solar.huawei_solar] Modbus client is not connected to the inverter
NoneType: None
2025-02-26 22:51:16.290 INFO (MainThread) [backoff] Backing off _do_read(...) for 1.0s (huawei_solar.exceptions.ConnectionInterruptedException: Modbus client is not connected to the inverter)
2025-02-26 22:51:17.292 ERROR (MainThread) [huawei_solar.huawei_solar] Modbus client is not connected to the inverter
NoneType: None
2025-02-26 22:51:17.292 INFO (MainThread) [backoff] Backing off _do_read(...) for 2.0s (huawei_solar.exceptions.ConnectionInterruptedException: Modbus client is not connected to the inverter)
2025-02-26 22:51:19.295 ERROR (MainThread) [huawei_solar.huawei_solar] Modbus client is not connected to the inverter
NoneType: None
2025-02-26 22:51:19.295 INFO (MainThread) [backoff] Backing off _do_read(...) for 4.0s (huawei_solar.exceptions.ConnectionInterruptedException: Modbus client is not connected to the inverter)
2025-02-26 22:51:23.296 ERROR (MainThread) [huawei_solar.huawei_solar] Modbus client is not connected to the inverter
NoneType: None
2025-02-26 22:51:23.297 INFO (MainThread) [backoff] Backing off _do_read(...) for 8.0s (huawei_solar.exceptions.ConnectionInterruptedException: Modbus client is not connected to the inverter)
2025-02-26 22:51:31.298 ERROR (MainThread) [huawei_solar.huawei_solar] Modbus client is not connected to the inverter
NoneType: None
2025-02-26 22:51:31.299 INFO (MainThread) [backoff] Backing off _do_read(...) for 16.0s (huawei_solar.exceptions.ConnectionInterruptedException: Modbus client is not connected to the inverter)
2025-02-26 22:51:47.300 ERROR (MainThread) [huawei_solar.huawei_solar] Modbus client is not connected to the inverter
NoneType: None
2025-02-26 22:51:47.301 ERROR (MainThread) [backoff] Giving up _do_read(...) after 6 tries (huawei_solar.exceptions.ConnectionInterruptedException: Modbus client is not connected to the inverter)
2025-02-26 22:53:09.010 ERROR (MainThread) [huawei_solar.huawei_solar] Modbus client is not connected to the inverter
NoneType: None
2025-02-26 22:53:09.010 INFO (MainThread) [backoff] Backing off _do_read(...) for 1.0s (huawei_solar.exceptions.ConnectionInterruptedException: Modbus client is not connected to the inverter)
2025-02-26 22:53:10.011 ERROR (MainThread) [huawei_solar.huawei_solar] Modbus client is not connected to the inverter
NoneType: None
2025-02-26 22:53:10.012 INFO (MainThread) [backoff] Backing off _do_read(...) for 2.0s (huawei_solar.exceptions.ConnectionInterruptedException: Modbus client is not connected to the inverter)
2025-02-26 22:53:12.013 ERROR (MainThread) [huawei_solar.huawei_solar] Modbus client is not connected to the inverter
NoneType: None
2025-02-26 22:53:12.014 INFO (MainThread) [backoff] Backing off _do_read(...) for 4.0s (huawei_solar.exceptions.ConnectionInterruptedException: Modbus client is not connected to the inverter)
2025-02-26 22:53:16.015 ERROR (MainThread) [huawei_solar.huawei_solar] Modbus client is not connected to the inverter
NoneType: None
2025-02-26 22:53:16.016 INFO (MainThread) [backoff] Backing off _do_read(...) for 8.0s (huawei_solar.exceptions.ConnectionInterruptedException: Modbus client is not connected to the inverter)
2025-02-26 22:53:24.017 ERROR (MainThread) [huawei_solar.huawei_solar] Modbus client is not connected to the inverter
NoneType: None
2025-02-26 22:53:24.017 INFO (MainThread) [backoff] Backing off _do_read(...) for 16.0s (huawei_solar.exceptions.ConnectionInterruptedException: Modbus client is not connected to the inverter)
2025-02-26 22:53:27.100 WARNING (MainThread) [homeassistant.components.utility_meter.sensor] Bezugszähler Wasser received an invalid new state from sensor.watermeter_value : unknown
2025-02-26 22:53:40.019 ERROR (MainThread) [huawei_solar.huawei_solar] Modbus client is not connected to the inverter
NoneType: None
2025-02-26 22:53:40.019 ERROR (MainThread) [backoff] Giving up _do_read(...) after 6 tries (huawei_solar.exceptions.ConnectionInterruptedException: Modbus client is not connected to the inverter)
2025-02-26 22:55:01.663 ERROR (MainThread) [huawei_solar.huawei_solar] Modbus client is not connected to the inverter
NoneType: None
2025-02-26 22:55:01.663 INFO (MainThread) [backoff] Backing off _do_read(...) for 1.0s (huawei_solar.exceptions.ConnectionInterruptedException: Modbus client is not connected to the inverter)
2025-02-26 22:55:02.665 ERROR (MainThread) [huawei_solar.huawei_solar] Modbus client is not connected to the inverter
NoneType: None
2025-02-26 22:55:02.665 INFO (MainThread) [backoff] Backing off _do_read(...) for 2.0s (huawei_solar.exceptions.ConnectionInterruptedException: Modbus client is not connected to the inverter)
2025-02-26 22:55:04.667 ERROR (MainThread) [huawei_solar.huawei_solar] Modbus client is not connected to the inverter
NoneType: None
2025-02-26 22:55:04.667 INFO (MainThread) [backoff] Backing off _do_read(...) for 4.0s (huawei_solar.exceptions.ConnectionInterruptedException: Modbus client is not connected to the inverter)
2025-02-26 22:55:08.668 ERROR (MainThread) [huawei_solar.huawei_solar] Modbus client is not connected to the inverter
NoneType: None
2025-02-26 22:55:08.669 INFO (MainThread) [backoff] Backing off _do_read(...) for 8.0s (huawei_solar.exceptions.ConnectionInterruptedException: Modbus client is not connected to the inverter)
2025-02-26 22:55:16.670 ERROR (MainThread) [huawei_solar.huawei_solar] Modbus client is not connected to the inverter
NoneType: None
2025-02-26 22:55:16.670 INFO (MainThread) [backoff] Backing off _do_read(...) for 16.0s (huawei_solar.exceptions.ConnectionInterruptedException: Modbus client is not connected to the inverter)
2025-02-26 22:55:32.671 ERROR (MainThread) [huawei_solar.huawei_solar] Modbus client is not connected to the inverter
NoneType: None
2025-02-26 22:55:32.672 ERROR (MainThread) [backoff] Giving up _do_read(...) after 6 tries (huawei_solar.exceptions.ConnectionInterruptedException: Modbus client is not connected to the inverter)
2025-02-26 22:56:54.313 ERROR (MainThread) [huawei_solar.huawei_solar] Modbus client is not connected to the inverter
NoneType: None
2025-02-26 22:56:54.314 INFO (MainThread) [backoff] Backing off _do_read(...) for 1.0s (huawei_solar.exceptions.ConnectionInterruptedException: Modbus client is not connected to the inverter)
2025-02-26 22:56:55.315 ERROR (MainThread) [huawei_solar.huawei_solar] Modbus client is not connected to the inverter
NoneType: None
2025-02-26 22:56:55.316 INFO (MainThread) [backoff] Backing off _do_read(...) for 2.0s (huawei_solar.exceptions.ConnectionInterruptedException: Modbus client is not connected to the inverter)
2025-02-26 22:56:57.317 ERROR (MainThread) [huawei_solar.huawei_solar] Modbus client is not connected to the inverter
NoneType: None
2025-02-26 22:56:57.317 INFO (MainThread) [backoff] Backing off _do_read(...) for 4.0s (huawei_solar.exceptions.ConnectionInterruptedException: Modbus client is not connected to the inverter)
2025-02-26 22:57:01.318 ERROR (MainThread) [huawei_solar.huawei_solar] Modbus client is not connected to the inverter
NoneType: None
2025-02-26 22:57:01.319 INFO (MainThread) [backoff] Backing off _do_read(...) for 8.0s (huawei_solar.exceptions.ConnectionInterruptedException: Modbus client is not connected to the inverter)
2025-02-26 22:57:09.320 ERROR (MainThread) [huawei_solar.huawei_solar] Modbus client is not connected to the inverter
NoneType: None
2025-02-26 22:57:09.321 INFO (MainThread) [backoff] Backing off _do_read(...) for 16.0s (huawei_solar.exceptions.ConnectionInterruptedException: Modbus client is not connected to the inverter)
2025-02-26 22:57:25.322 ERROR (MainThread) [huawei_solar.huawei_solar] Modbus client is not connected to the inverter
NoneType: None
2025-02-26 22:57:25.323 ERROR (MainThread) [backoff] Giving up _do_read(...) after 6 tries (huawei_solar.exceptions.ConnectionInterruptedException: Modbus client is not connected to the inverter)
2025-02-26 22:58:45.556 DEBUG (MainThread) [pymodbus.logging] Connecting to 192.168.222.71:502.
2025-02-26 22:58:45.556 DEBUG (MainThread) [pymodbus.logging] Connecting comm
2025-02-26 22:58:45.562 DEBUG (MainThread) [pymodbus.logging] Connected to comm
2025-02-26 22:58:45.562 DEBUG (MainThread) [huawei_solar.modbus] Waiting for 1500 milliseconds after connection before performing operations
2025-02-26 22:58:45.570 DEBUG (MainThread) [pymodbus.logging] -> transport: received eof
2025-02-26 22:58:45.571 DEBUG (MainThread) [pymodbus.logging] Connection lost comm due to None
2025-02-26 22:58:45.572 DEBUG (MainThread) [pymodbus.logging] Wait comm 1000000 ms before reconnecting.
2025-02-26 22:58:45.665 INFO (MainThread) [huawei_solar.huawei_solar] Waiting for connection
2025-02-26 22:58:47.065 DEBUG (MainThread) [huawei_solar.huawei_solar] Reading register 30000 with length 65 from slave 1
2025-02-26 22:58:47.065 ERROR (MainThread) [huawei_solar.huawei_solar] Modbus client is not connected to the inverter
NoneType: None
2025-02-26 22:58:47.066 INFO (MainThread) [backoff] Backing off _do_read(...) for 1.0s (huawei_solar.exceptions.ConnectionInterruptedException: Modbus client is not connected to the inverter)
2025-02-26 22:58:47.066 DEBUG (MainThread) [huawei_solar.huawei_solar] Received <class 'huawei_solar.exceptions.ConnectionInterruptedException'>: backing off reading for 1.0 seconds after 1 tries
2025-02-26 22:58:48.067 ERROR (MainThread) [huawei_solar.huawei_solar] Modbus client is not connected to the inverter
NoneType: None
2025-02-26 22:58:48.068 INFO (MainThread) [backoff] Backing off _do_read(...) for 2.0s (huawei_solar.exceptions.ConnectionInterruptedException: Modbus client is not connected to the inverter)
2025-02-26 22:58:48.068 DEBUG (MainThread) [huawei_solar.huawei_solar] Received <class 'huawei_solar.exceptions.ConnectionInterruptedException'>: backing off reading for 2.0 seconds after 2 tries
2025-02-26 22:58:50.069 ERROR (MainThread) [huawei_solar.huawei_solar] Modbus client is not connected to the inverter
NoneType: None
2025-02-26 22:58:50.070 INFO (MainThread) [backoff] Backing off _do_read(...) for 4.0s (huawei_solar.exceptions.ConnectionInterruptedException: Modbus client is not connected to the inverter)
2025-02-26 22:58:50.070 DEBUG (MainThread) [huawei_solar.huawei_solar] Received <class 'huawei_solar.exceptions.ConnectionInterruptedException'>: reconnecting and backing off reading for 4.0 seconds after 3 tries
2025-02-26 22:58:50.070 DEBUG (MainThread) [pymodbus.logging] Connecting to 192.168.222.71:502.
2025-02-26 22:58:50.070 DEBUG (MainThread) [pymodbus.logging] Connecting comm
2025-02-26 22:58:50.075 DEBUG (MainThread) [pymodbus.logging] Connected to comm
2025-02-26 22:58:50.075 DEBUG (MainThread) [huawei_solar.modbus] Waiting for 1500 milliseconds after connection before performing operations
2025-02-26 22:58:50.085 DEBUG (MainThread) [pymodbus.logging] -> transport: received eof
2025-02-26 22:58:50.086 DEBUG (MainThread) [pymodbus.logging] Connection lost comm due to None
2025-02-26 22:58:50.087 DEBUG (MainThread) [pymodbus.logging] Wait comm 1000000 ms before reconnecting.
2025-02-26 22:58:54.071 ERROR (MainThread) [huawei_solar.huawei_solar] Modbus client is not connected to the inverter
NoneType: None
2025-02-26 22:58:54.071 INFO (MainThread) [backoff] Backing off _do_read(...) for 8.0s (huawei_solar.exceptions.ConnectionInterruptedException: Modbus client is not connected to the inverter)
2025-02-26 22:58:54.071 DEBUG (MainThread) [huawei_solar.huawei_solar] Received <class 'huawei_solar.exceptions.ConnectionInterruptedException'>: backing off reading for 8.0 seconds after 4 tries
2025-02-26 22:59:02.073 ERROR (MainThread) [huawei_solar.huawei_solar] Modbus client is not connected to the inverter
NoneType: None
2025-02-26 22:59:02.074 INFO (MainThread) [backoff] Backing off _do_read(...) for 16.0s (huawei_solar.exceptions.ConnectionInterruptedException: Modbus client is not connected to the inverter)
2025-02-26 22:59:02.074 DEBUG (MainThread) [huawei_solar.huawei_solar] Received <class 'huawei_solar.exceptions.ConnectionInterruptedException'>: backing off reading for 16.0 seconds after 5 tries
2025-02-26 22:59:18.075 ERROR (MainThread) [huawei_solar.huawei_solar] Modbus client is not connected to the inverter
NoneType: None
2025-02-26 22:59:18.075 ERROR (MainThread) [backoff] Giving up _do_read(...) after 6 tries (huawei_solar.exceptions.ConnectionInterruptedException: Modbus client is not connected to the inverter)
2025-02-26 23:00:39.724 ERROR (MainThread) [huawei_solar.huawei_solar] Modbus client is not connected to the inverter
NoneType: None
2025-02-26 23:00:39.725 INFO (MainThread) [backoff] Backing off _do_read(...) for 1.0s (huawei_solar.exceptions.ConnectionInterruptedException: Modbus client is not connected to the inverter)
2025-02-26 23:00:40.726 ERROR (MainThread) [huawei_solar.huawei_solar] Modbus client is not connected to the inverter
NoneType: None
2025-02-26 23:00:40.726 INFO (MainThread) [backoff] Backing off _do_read(...) for 2.0s (huawei_solar.exceptions.ConnectionInterruptedException: Modbus client is not connected to the inverter)
2025-02-26 23:00:42.728 ERROR (MainThread) [huawei_solar.huawei_solar] Modbus client is not connected to the inverter
NoneType: None
2025-02-26 23:00:42.728 INFO (MainThread) [backoff] Backing off _do_read(...) for 4.0s (huawei_solar.exceptions.ConnectionInterruptedException: Modbus client is not connected to the inverter)
2025-02-26 23:00:46.729 ERROR (MainThread) [huawei_solar.huawei_solar] Modbus client is not connected to the inverter
NoneType: None
2025-02-26 23:00:46.730 INFO (MainThread) [backoff] Backing off _do_read(...) for 8.0s (huawei_solar.exceptions.ConnectionInterruptedException: Modbus client is not connected to the inverter)
2025-02-26 23:00:54.738 ERROR (MainThread) [huawei_solar.huawei_solar] Modbus client is not connected to the inverter
NoneType: None
2025-02-26 23:00:54.739 INFO (MainThread) [backoff] Backing off _do_read(...) for 16.0s (huawei_solar.exceptions.ConnectionInterruptedException: Modbus client is not connected to the inverter)
2025-02-26 23:01:10.740 ERROR (MainThread) [huawei_solar.huawei_solar] Modbus client is not connected to the inverter
NoneType: None
2025-02-26 23:01:10.741 ERROR (MainThread) [backoff] Giving up _do_read(...) after 6 tries (huawei_solar.exceptions.ConnectionInterruptedException: Modbus client is not connected to the inverter)

Please confirm the following:

• I'm running the latest release of Home Assistant.
• I'm running the latest release of this integration.
• I did not find an existing issue describing this problem.
• I did upload the diagnostics-file that I could retrieve from the 'Devices & Services Page'
• I did upload the relevant debug logs (via 'Enable Debug Logging'-feature or by manually configuring HA logging)

[SvenAbels]

After about 6 hours, this error has disappeared. I will monitor the situation and re-open the ticket if necessary.

[wlcrs]

Hi Sven,

This was a connection problem: your inverter does not react to any request made by the integration. It did seem to be able to setup the actual TCP connection, but no actual traffic came back over it.

Please make sure that no other devices/services try to connect to the dongle. I would suggest that you also do a full power cycle of your inverter and SDongle if it happens again.

[SvenAbels]

This was a connection problem: your inverter does not react to any request made by the integration. It did seem to be able to setup the actual TCP connection, but no actual traffic came back over it.

Please make sure that no other devices/services try to connect to the dongle. I would suggest that you also do a full power cycle of your inverter and SDongle if it happens again.

Thanks a lot for your help. The connection is possible again now.

I will monitor this and if it happens again then I will perform a full power cycle as you suggest. :-)

Best regards,

Sven