Random disconnects after firmware upgrades on SUN2000-4.6KTL-L1 inverter

[MonYvel]

Hi,

First I want to say: Huge thanks for the creation & support on this integration!

I'm sorry if this issue is already handled in an other discussion. But my issues are a bit different then mentioned in other similar discussions. If I'm wrong, please point me to it & I will share my details there.

Describe the issue

Unfortunately I'm having random disconnects since I've upgraded the firmware on the inverter, DC Modbus & batteries last weekend.

The connection always fixes itself after a few minutes. I don't need to reinitialize the integration like I've seen in some other discussions.

anybody else experiencing this after upgrading to the above mentioned firmware's? Can I provide you with more information to help me troubleshoot this?

Describe your Huawei Solar Setup
Inverter Type: SUN2000-4.6KTL-L1
Inverter Firmware version: V200R001C00SPC146
sDongle present: No
MBUS PLC DC Firmware: V100R001C00SPC335
Power meter present: Yes
Optimizers Present: No
Battery: Yes
LUNA2000 batteries firmware: V100R002C00SPC624
Huawei Solar integration version: 1.5.3

How do you connect to the inverter?
Via the IP with which the inverter is directly connected to your home network connection.

Debuglog

2025-02-04 10:43:31.062 INFO (MainThread) [backoff] Backing off _do_read(...) for 16.0s (huawei_solar.exceptions.ConnectionInterruptedException: Modbus client is not connected to the inverter)
2025-02-04 10:43:32.318 ERROR (MainThread) [custom_components.huawei_solar] Timeout fetching TA2220028785_inverter_data_update_coordinator data
2025-02-04 10:43:35.233 ERROR (MainThread) [custom_components.huawei_solar] Timeout fetching TA2220028785_power_meter_data_update_coordinator data
2025-02-04 10:43:51.332 ERROR (MainThread) [huawei_solar.huawei_solar] Timeout while waiting for connection. Reconnecting
Traceback (most recent call last):
  File "/usr/local/lib/python3.13/asyncio/tasks.py", line 507, in wait_for
    return await fut
           ^^^^^^^^^
  File "/usr/local/lib/python3.13/asyncio/locks.py", line 213, in wait
    await fut
asyncio.exceptions.CancelledError
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
  File "/usr/local/lib/python3.13/site-packages/huawei_solar/huawei_solar.py", line 141, in _communication_lock
    await asyncio.wait_for(
    ...<2 lines>...
    )
  File "/usr/local/lib/python3.13/asyncio/tasks.py", line 506, in wait_for
    async with timeouts.timeout(timeout):
               ~~~~~~~~~~~~~~~~^^^^^^^^^
  File "/usr/local/lib/python3.13/asyncio/timeouts.py", line 116, in __aexit__
    raise TimeoutError from exc_val
TimeoutError
2025-02-04 10:43:51.335 ERROR (MainThread) [custom_components.huawei_solar] Timeout fetching TA2220028785_battery_data_update_coordinator data
2025-02-04 10:45:56.809 ERROR (MainThread) [homeassistant] Error doing job: Fatal error: protocol.data_received() call failed. (None)
Traceback (most recent call last):
  File "/usr/local/lib/python3.13/asyncio/selector_events.py", line 1019, in _read_ready__data_received
    self._protocol.data_received(data)
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^
  File "/usr/local/lib/python3.13/site-packages/pymodbus/transport/transport.py", line 304, in data_received
    self.datagram_received(data, None)
    ~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^
  File "/usr/local/lib/python3.13/site-packages/pymodbus/transport/transport.py", line 338, in datagram_received
    cut = self.callback_data(self.recv_buffer, addr=addr)
  File "/usr/local/lib/python3.13/site-packages/pymodbus/transaction/transaction.py", line 183, in callback_data
    self.response_future.set_result(pdu)
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^
asyncio.exceptions.InvalidStateError: invalid state
2025-02-04 10:45:56.831 ERROR (MainThread) [huawei_solar.huawei_solar] Modbus client is not connected to the inverter
NoneType: None
2025-02-04 10:45:56.832 INFO (MainThread) [backoff] Backing off _do_read(...) for 1.0s (huawei_solar.exceptions.ConnectionInterruptedException: Modbus client is not connected to the inverter)
2025-02-04 10:45:57.833 ERROR (MainThread) [huawei_solar.huawei_solar] Modbus client is not connected to the inverter
NoneType: None
2025-02-04 10:45:57.833 INFO (MainThread) [backoff] Backing off _do_read(...) for 2.0s (huawei_solar.exceptions.ConnectionInterruptedException: Modbus client is not connected to the inverter)
2025-02-04 10:45:59.834 ERROR (MainThread) [huawei_solar.huawei_solar] Modbus client is not connected to the inverter
NoneType: None
2025-02-04 10:45:59.835 INFO (MainThread) [backoff] Backing off _do_read(...) for 4.0s (huawei_solar.exceptions.ConnectionInterruptedException: Modbus client is not connected to the inverter)