In the client-side logs that you sent in earlier we can see that you are using a local IP address to connect. The error message given is an indication that the IP address is wrong. We also see that you tried changing the port, probably just to check if that was the problem, and the same error is given. If it was the port which had been wrong, the message would be ‘Connection refused’.
We assume that your machines are both on the same local network, and that you are not trying to connect from outside that network. Can you confirm this? If you are on the same network, have you tried connecting in the reverse direction?
Additionally, it would be useful to have the logs from the machine that you are trying to connect to. Please take a look at the instructions on how to enable debug on the Windows machine you’re trying to reach. Once you’ve enabled the logs, reproduce the error (by connecting) and then zip up the logs from that side. Send them to forum[at]nomachine[dot]com.
https://www.nomachine.com/DT07M00098