Edimax switch error after update?

Hi,
i use some EdipLug Switches “SP-2101W”. They worked fine in the last weeks. But since some days, i can’t controll theses Switches. After a restart from Homeassistant it worked a few minutes, but after that the EdiPlugs will not responding from Homeassistant.
If i use the Ediplug App on my mobile i can reach the switches an can turn it on and off.

In the log file i can see the following:

2020-11-30 07:04:21 WARNING (MainThread) [homeassistant.helpers.entity] Update of switch.kueche_kleine_lampe is taking over 10 seconds
2020-11-30 07:04:29 ERROR (MainThread) [homeassistant.components.google_assistant.http] Request for https://homegraph.googleapis.com/v1/devices:reportStateAndNotification failed: 404
2020-11-30 07:04:41 WARNING (MainThread) [homeassistant.components.switch] Updating edimax switch took longer than the scheduled update interval 0:00:30
2020-11-30 07:05:09 WARNING (MainThread) [homeassistant.helpers.service] Unable to find referenced entities light.kueche_kleine_lampe
2020-11-30 07:05:11 WARNING (MainThread) [homeassistant.components.switch] Updating edimax switch took longer than the scheduled update interval 0:00:30
2020-11-30 07:05:41 WARNING (MainThread) [homeassistant.components.switch] Updating edimax switch took longer than the scheduled update interval 0:00:30
2020-11-30 07:05:46 ERROR (MainThread) [homeassistant.components.google_assistant.http] Request for https://homegraph.googleapis.com/v1/devices:reportStateAndNotification failed: 404
2020-11-30 07:06:11 WARNING (MainThread) [homeassistant.components.switch] Updating edimax switch took longer than the scheduled update interval 0:00:30
2020-11-30 07:06:20 ERROR (MainThread) [homeassistant.helpers.entity] Update for switch.kueche_kleine_lampe fails
Traceback (most recent call last):
  File "/usr/local/lib/python3.8/site-packages/urllib3/connection.py", line 169, in _new_conn
    conn = connection.create_connection(
  File "/usr/local/lib/python3.8/site-packages/urllib3/util/connection.py", line 96, in create_connection
    raise err
  File "/usr/local/lib/python3.8/site-packages/urllib3/util/connection.py", line 86, in create_connection
    sock.connect(sa)
TimeoutError: [Errno 110] Operation timed out
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
  File "/usr/local/lib/python3.8/site-packages/urllib3/connectionpool.py", line 699, in urlopen
    httplib_response = self._make_request(
  File "/usr/local/lib/python3.8/site-packages/urllib3/connectionpool.py", line 394, in _make_request
    conn.request(method, url, **httplib_request_kw)
  File "/usr/local/lib/python3.8/site-packages/urllib3/connection.py", line 234, in request
    super(HTTPConnection, self).request(method, url, body=body, headers=headers)
  File "/usr/local/lib/python3.8/http/client.py", line 1255, in request
    self._send_request(method, url, body, headers, encode_chunked)
  File "/usr/local/lib/python3.8/http/client.py", line 1301, in _send_request
    self.endheaders(body, encode_chunked=encode_chunked)
  File "/usr/local/lib/python3.8/http/client.py", line 1250, in endheaders
    self._send_output(message_body, encode_chunked=encode_chunked)
  File "/usr/local/lib/python3.8/http/client.py", line 1010, in _send_output
    self.send(msg)
  File "/usr/local/lib/python3.8/http/client.py", line 950, in send
    self.connect()
  File "/usr/local/lib/python3.8/site-packages/urllib3/connection.py", line 200, in connect
    conn = self._new_conn()
  File "/usr/local/lib/python3.8/site-packages/urllib3/connection.py", line 181, in _new_conn
    raise NewConnectionError(
urllib3.exceptions.NewConnectionError: : Failed to establish a new connection: [Errno 110] Operation timed out
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
  File "/usr/local/lib/python3.8/site-packages/requests/adapters.py", line 439, in send
    resp = conn.urlopen(
  File "/usr/local/lib/python3.8/site-packages/urllib3/connectionpool.py", line 755, in urlopen
    retries = retries.increment(
  File "/usr/local/lib/python3.8/site-packages/urllib3/util/retry.py", line 573, in increment
    raise MaxRetryError(_pool, url, error or ResponseError(cause))
urllib3.exceptions.MaxRetryError: HTTPConnectionPool(host='xxx.xx.xx.xx', port=10000): Max retries exceeded with url: /smartplug.cgi (Caused by NewConnectionError(': Failed to establish a new connection: [Errno 110] Operation timed out'))
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 278, in async_update_ha_state
    await self.async_device_update()
  File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 482, in async_device_update
    await task
  File "/usr/local/lib/python3.8/concurrent/futures/thread.py", line 57, in run
    result = self.fn(*self.args, **self.kwargs)
  File "/usr/src/homeassistant/homeassistant/components/edimax/switch.py", line 90, in update
    self._now_power = float(self.smartplug.now_power)
  File "/usr/local/lib/python3.8/site-packages/pyedimax/smartplug.py", line 236, in now_power
    res = self._post_xml_now_power(self._xml_cmd_get_now_power("NowPower"))
  File "/usr/local/lib/python3.8/site-packages/pyedimax/smartplug.py", line 147, in _post_xml_now_power
    res = requests.post(self.url, auth=self.auth, files=files)
  File "/usr/local/lib/python3.8/site-packages/requests/api.py", line 119, in post
    return request('post', url, data=data, json=json, **kwargs)
  File "/usr/local/lib/python3.8/site-packages/requests/api.py", line 61, in request
    return session.request(method=method, url=url, **kwargs)
  File "/usr/local/lib/python3.8/site-packages/requests/sessions.py", line 542, in request
    resp = self.send(prep, **send_kwargs)
  File "/usr/local/lib/python3.8/site-packages/requests/sessions.py", line 655, in send
    r = adapter.send(request, **kwargs)
  File "/usr/local/lib/python3.8/site-packages/requests/adapters.py", line 516, in send
    raise ConnectionError(e, request=request)
requests.exceptions.ConnectionError: HTTPConnectionPool(host='xxx.xx.xx.xx', port=10000): Max retries exceeded with url: /smartplug.cgi (Caused by NewConnectionError(': Failed to establish a new connection: [Errno 110] Operation timed out'))

Any idea?

Regards
Herbert