Asuswrt cannot work normally under ha2020.12.2 Help PLZ!

Asuswrt cannot work normally under ha2020.12.2 Help PLZ!!
On the abnormal error of asuswrt official integration in ha2020.12.2
There are error messages:

Error during setup of component asuswrt
Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/setup.py", line 213, in _async_setup_component
    result = await task
  File "/usr/src/homeassistant/homeassistant/components/asuswrt/__init__.py", line 85, in async_setup
    await api.connection.async_connect()
  File "/usr/local/lib/python3.8/site-packages/aioasuswrt/connection.py", line 77, in async_connect
    self._client = await asyncssh.connect(self._host, **kwargs)
  File "/usr/local/lib/python3.8/site-packages/asyncssh/misc.py", line 182, in __await__
    return (yield from self._coro)
  File "/usr/local/lib/python3.8/site-packages/asyncssh/connection.py", line 5451, in connect
    conn, _ = yield from create_connection(None, host, port, **kwargs)
  File "/usr/local/lib/python3.8/site-packages/asyncssh/connection.py", line 5107, in create_connection
    yield from auth_waiter
asyncssh.misc.DisconnectError: Disconnect Error: Connection lost

OR ~ Has anyone ever had the same problem?

Casually, there is no problem about the setting of router SSH login…
And … This has been a problem for a long time since HA was upgraded

And the reason why I can log in to the router after I upgrade to SSH is that I can log in to the router