Homematic IP on CCU3 stop responding

Hi there!!

in the last couple of month (after a Home assistant update I suspect…)
I am having some problem with the CCU3 - Homematic IP connection…

It used to work for at least a couple of year without problem and on raspberry reboot I get sensors update for few hours…

after that I stop receiving updates and see this errors…

2022-09-13 18:10:30.220 ERROR (MainThread) [aiohttp.server] Error handling request
Traceback (most recent call last):
File "/usr/local/lib/python3.10/site-packages/aiohttp/web_protocol.py", line 334, in data_received
messages, upgraded, tail = self._request_parser.feed_data(data)
File "aiohttp/_http_parser.pyx", line 551, in aiohttp._http_parser.HttpParser.feed_data
aiohttp.http_exceptions.BadStatusLine: 400, message="Bad status line 'Invalid method encountered'"
2022-09-13 20:25:20.533 ERROR (SyncWorker_7) [pyhomematic._hm] RPCFunctions.jsonRpcPost: Exception: <urlopen error [Errno 113] Host is unreachable>
2022-09-13 20:25:20.543 WARNING (SyncWorker_7) [pyhomematic._hm] ServerThread.jsonRpcLogin: Unable to open session.
2022-09-13 20:25:24.373 ERROR (SyncWorker_3) [pyhomematic._hm] RPCFunctions.jsonRpcPost: Exception: <urlopen error [Errno 113] Host is unreachable>
2022-09-13 20:25:24.377 WARNING (SyncWorker_3) [pyhomematic._hm] ServerThread.jsonRpcLogin: Unable to open session.
2022-09-13 20:25:52.821 ERROR (SyncWorker_1) [pyhomematic._hm] RPCFunctions.jsonRpcPost: Exception: <urlopen error [Errno 113] Host is unreachable>
2022-09-13 20:25:52.824 WARNING (SyncWorker_1) [pyhomematic._hm] ServerThread.jsonRpcLogin: Unable to open session.
2022-09-13 20:26:22.805 ERROR (SyncWorker_2) [pyhomematic._hm] RPCFunctions.jsonRpcPost: Exception: <urlopen error [Errno 113] Host is unreachable>
2022-09-13 20:26:22.808 WARNING (SyncWorker_2) [pyhomematic._hm] ServerThread.jsonRpcLogin: Unable to open session.
2022-09-13 20:26:52.821 ERROR (SyncWorker_3) [pyhomematic._hm] RPCFunctions.jsonRpcPost: Exception: <urlopen error [Errno 113] Host is unreachable>
2022-09-13 20:26:52.825 WARNING (SyncWorker_3) [pyhomematic._hm] ServerThread.jsonRpcLogin: Unable to open session.
2022-09-13 20:27:22.805 ERROR (SyncWorker_1) [pyhomematic._hm] RPCFunctions.jsonRpcPost: Exception: <urlopen error [Errno 113] Host is unreachable>
2022-09-13 20:27:22.807 WARNING (SyncWorker_1) [pyhomematic._hm] ServerThread.jsonRpcLogin: Unable to open session.
2022-09-13 20:27:52.821 ERROR (SyncWorker_2) [pyhomematic._hm] RPCFunctions.jsonRpcPost: Exception: <urlopen error [Errno 113] Host is unreachable>

Someone is having the same issue?
Any idea on how to solve

Thanks
gluca

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