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After spending copious amounts of time troubleshooting, I cannot seem to get NoMachine to connect remotely to my Windows PC. I have tried following several guides such as https://kb.nomachine.com/DT07S00245. I have looked through various forum posts on the matter as well. I have turned off my Windows firewall and my router firewall. I have UPnP enabled. I have setup port forwarding using the Server PC local IP with the private and public ports configured in NoMachine server ports. I can confirm that connecting locally does work.
The error message that I get is:
A connection timeout has occurred while trying to connect to '' on port ''. The issue could either be caused by a networking problem, by a firewall or NAT blocking incoming traffic or by a wrong server address. Please verify your configuration and try again.Any help would be greatly appreciated.
Hello,
It seems the issue might be with port forwarding if multiple routers are involved. Ensure that:
Port Forwarding: If you have a secondary router, forward the port from the first router to the second router’s IP, and then from the second router to your NoMachine server’s local IP.
A similar topic is here: https://forum.nomachine.com/topic/double-nat-remote-through-internet
UPnP: Check if UPnP is enabled on all routers or manually configure port forwarding if needed.
External IP and Port: Use your public IP (e.g., from WhatIsMyIP.com) and the port configured for NoMachine when connecting remotely.
Firewalls: Temporarily disable firewalls on routers and the server to rule out connection blocks.
If the issue persists, let us know more about your network setup for further assistance.
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