zk.exception.ZKNetworkError: timed out

While try to run the ERPNext biometric system im getting this error.

Note: I cross verified the IP it’s mapped correctly. but while fetching from the device only im getting this error

zk.exception.ZKNetworkError: timed out

Full Error TraceBack

Traceback (most recent call last):
  File "c:\Users\warehouse\erp_biometric\env\Lib\site-packages\zk\base.py", line 248, in __send_command
    self.__sock.send(top)
TimeoutError: timed out

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "c:\Users\warehouse\erp_biometric\env\Lib\site-packages\zk\base.py", line 373, in connect
    cmd_response = self.__send_command(const.CMD_CONNECT)
                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "c:\Users\warehouse\erp_biometric\env\Lib\site-packages\zk\base.py", line 260, in __send_command
    raise ZKNetworkError(str(e))
zk.exception.ZKNetworkError: timed out

Please some one help