Zigbee stopped working a few weeks ago

A few weeks ago, after an update zigbee stopped working. At that time I could fix it by doing the authenticate app in Phoscon. However, with the update after that things went totally wrong. I tried things I found in the forum like Phoscon authenticating again, changing the zigbee channel, restoring older versions of home assisstant but nothing helped. I used the Conbee II stick.
This is what’s in the logs:

> Logger: homeassistant.components.zha.core.gateway
> Source: components/zha/core/gateway.py:152
> Integration: Zigbee Home Automation ([documentation](https://www.home-assistant.io/integrations/zha), [issues](https://github.com/home-assistant/home-assistant/issues?q=is%3Aissue+is%3Aopen+label%3A%22integration%3A+zha%22))
> First occurred: 15:42:16 (10 occurrences)
> Last logged: 15:50:30
> 
> Couldn't start deCONZ = dresden elektronik deCONZ protocol: ConBee I/II, RaspBee I/II coordinator
> 
> Traceback (most recent call last): File "/usr/local/lib/python3.9/asyncio/tasks.py", line 492, in wait_for fut.result() asyncio.exceptions.CancelledError The above exception was the direct cause of the following exception: Traceback (most recent call last): File "/usr/src/homeassistant/homeassistant/components/zha/core/gateway.py", line 152, in async_initialize self.application_controller = await app_controller_cls.new( File "/usr/local/lib/python3.9/site-packages/zigpy/application.py", line 69, in new await app.startup(auto_form) File "/usr/local/lib/python3.9/site-packages/zigpy_deconz/zigbee/application.py", line 67, in startup self.version = await self._api.version() File "/usr/local/lib/python3.9/site-packages/zigpy_deconz/api.py", line 463, in version (self._proto_ver,) = await self[NetworkParameter.protocol_version] File "/usr/local/lib/python3.9/site-packages/zigpy_deconz/api.py", line 428, in read_parameter r = await self._command(Command.read_parameter, 1 + len(data), param, data) File "/usr/local/lib/python3.9/site-packages/zigpy_deconz/api.py", line 313, in _command return await asyncio.wait_for(fut, timeout=COMMAND_TIMEOUT) File "/usr/local/lib/python3.9/asyncio/tasks.py", line 494, in wait_for raise exceptions.TimeoutError() from exc asyncio.exceptions.TimeoutError
> Logger: zigpy.application
> Source: /usr/local/lib/python3.9/site-packages/zigpy/application.py:73
> First occurred: 15:42:16 (10 occurrences)
> Last logged: 15:50:30
> 
> Couldn't start application
> Logger: zigpy_deconz.api
> Source: /usr/local/lib/python3.9/site-packages/zigpy_deconz/api.py:315
> First occurred: 15:42:16 (10 occurrences)
> Last logged: 15:50:30
> 
> No response to 'Command.read_parameter' command with seq id '0x02'

I’m thinking of a totally fresh install as nothing seems to help now…