Myriad of errors after updating to 2021.7.4

All kinds of errors showing up:
2021-08-02 10:22:17 ERROR (MainThread) [homeassistant] Error doing job: Future exception was never retrieved Traceback (most recent call last): File "/usr/local/lib/python3.9/site-packages/urllib3/connection.py", line 169, in _new_conn conn = connection.create_connection( File "/usr/local/lib/python3.9/site-packages/urllib3/util/connection.py", line 73, in create_connection for res in socket.getaddrinfo(host, port, family, socket.SOCK_STREAM): File "/usr/local/lib/python3.9/socket.py", line 953, in getaddrinfo for res in _socket.getaddrinfo(host, port, family, type, proto, flags): socket.gaierror: [Errno -3] Try again During handling of the above exception, another exception occurred: Traceback (most recent call last): File "/usr/local/lib/python3.9/site-packages/urllib3/connectionpool.py", line 699, in urlopen httplib_response = self._make_request( File "/usr/local/lib/python3.9/site-packages/urllib3/connectionpool.py", line 382, in _make_request self._validate_conn(conn) File "/usr/local/lib/python3.9/site-packages/urllib3/connectionpool.py", line 1010, in _validate_conn conn.connect() File "/usr/local/lib/python3.9/site-packages/urllib3/connection.py", line 353, in connect conn = self._new_conn() File "/usr/local/lib/python3.9/site-packages/urllib3/connection.py", line 181, in _new_conn raise NewConnectionError( urllib3.exceptions.NewConnectionError: <urllib3.connection.HTTPSConnection object at 0xffff83244dc0>: Failed to establish a new connection: [Errno -3] Try again During handling of the above exception, another exception occurred: Traceback (most recent call last): File "/usr/local/lib/python3.9/site-packages/requests/adapters.py", line 439, in send resp = conn.urlopen( File "/usr/local/lib/python3.9/site-packages/urllib3/connectionpool.py", line 755, in urlopen retries = retries.increment( File "/usr/local/lib/python3.9/site-packages/urllib3/util/retry.py", line 574, in increment raise MaxRetryError(_pool, url, error or ResponseError(cause)) urllib3.exceptions.MaxRetryError: HTTPSConnectionPool(host='setup.icloud.com', port=443): Max retries exceeded with url: /setup/ws/1/validate (Caused by NewConnectionError('<urllib3.connection.HTTPSConnection object at 0xffff83244dc0>: Failed to establish a new connection: [Errno -3] Try again')) During handling of the above exception, another exception occurred: Traceback (most recent call last): File "/usr/local/lib/python3.9/concurrent/futures/thread.py", line 52, in run result = self.fn(*self.args, **self.kwargs) File "/usr/src/homeassistant/homeassistant/components/icloud/account.py", line 324, in keep_alive self.api.authenticate() File "/usr/local/lib/python3.9/site-packages/pyicloud/base.py", line 284, in authenticate self.data = self._validate_token() File "/usr/local/lib/python3.9/site-packages/pyicloud/base.py", line 374, in _validate_token req = self.session.post("%s/validate" % self.SETUP_ENDPOINT, data="null") File "/usr/local/lib/python3.9/site-packages/requests/sessions.py", line 590, in post return self.request('POST', url, data=data, json=json, **kwargs) File "/usr/local/lib/python3.9/site-packages/pyicloud/base.py", line 85, in request response = super(PyiCloudSession, self).request(method, url, **kwargs) File "/usr/local/lib/python3.9/site-packages/requests/sessions.py", line 542, in request resp = self.send(prep, **send_kwargs) File "/usr/local/lib/python3.9/site-packages/requests/sessions.py", line 655, in send r = adapter.send(request, **kwargs) File "/usr/local/lib/python3.9/site-packages/requests/adapters.py", line 516, in send raise ConnectionError(e, request=request) requests.exceptions.ConnectionError: HTTPSConnectionPool(host='setup.icloud.com', port=443): Max retries exceeded with url: /setup/ws/1/validate (Caused by NewConnectionError('<urllib3.connection.HTTPSConnection object at 0xffff83244dc0>: Failed to establish a new connection: [Errno -3] Try again'))

Do you run a reverse proxy?

No, I don’t. After updating I had problems with Emulated Hue, Leviton switches and TP-Link switches for a couple of hours then (after several restarts) everything finally settled back to normal.

I’ve got this problem, but it’s been a day or so.
I’ll try a reboot of my router and see if that helps.