You need to specify the internal port.
And it is critical that the host at 192.168.1.101 is up and has the service active and listening for connections on the specified port. If the service isn't listening and responding, the port probe will report a closed port.
If that doesn't fix the issue, please post the following:
Please connect to your OpenWrt device using ssh and copy the output of the following commands and post it here using the "Preformatted text </> " button:
Remember to redact passwords, MAC addresses and any public IP addresses you may have: