Unexpected exception when adding Calex contact sensor

When I try to manually add a Calex contact sensor device (automatic detection doesn't find it even though its in SmartLife and working and the device is Tuya capable), i get this exception error:

Logger: custom_components.localtuya.config_flow
Source: custom_components/localtuya/pytuya/__init__.py:626
Integration: LocalTuya integration (documentation, issues)
First occurred: 12:42:51 (1 occurrences)
Last logged: 12:42:51

Unexpected exception
Traceback (most recent call last):
  File "/config/custom_components/localtuya/config_flow.py", line 260, in async_step_basic_info
    self.dps_strings = await validate_input(self.hass, user_input)
  File "/config/custom_components/localtuya/config_flow.py", line 166, in validate_input
    interface = await pytuya.connect(
  File "/config/custom_components/localtuya/pytuya/__init__.py", line 626, in connect
    _, protocol = await loop.create_connection(
  File "/usr/local/lib/python3.8/asyncio/base_events.py", line 1025, in create_connection
    raise exceptions[0]
  File "/usr/local/lib/python3.8/asyncio/base_events.py", line 1010, in create_connection
    sock = await self._connect_sock(
  File "/usr/local/lib/python3.8/asyncio/base_events.py", line 924, in _connect_sock
    await self.sock_connect(sock, address)
  File "/usr/local/lib/python3.8/asyncio/selector_events.py", line 496, in sock_connect
    return await fut
  File "/usr/local/lib/python3.8/asyncio/selector_events.py", line 528, in _sock_connect_cb
    raise OSError(err, f'Connect call failed {address}')
OSError: [Errno 113] Connect call failed ('192.168.8.xxx', 6668)

rospogrigio / localtuya

Unexpected exception when adding Calex contact sensor #208