nomachine server windows 10 not listening on port 4000

If your computer’s public IP is not displayed in the initial welcome panel, manual configuration of the router may be required (either because the router doesn’t support UPnP or because it is disabled), so that the NoMachine server can be reached over the Internet. Commands as sudo /etc/NX/nxserver –upnpmap also don’t work, as in never an external IP is shown. But also after seemingly doing that, NoMachine doesn’t show any working port. It never lists the external port though as working. If I look at the NoMachine server on my laptop (which works to connect to locally), it says 192.168.1.14. I go to NAT -> Virtual servers and fill in this data: Server Name Wifi password? Laptop password? Router password? Something else? If your HTTP proxy requires authentication, insert credentials: nothing filled in. Port: 20536 (port NoMachine itself suggests). Host: 87.21… (not sure if this is the external IP location) Use a HTTP proxy for the network connection: V (yes) Use NAT_PMP or UPnP to mape the port: V (yes). Host: 192.168.1.14 (why doesn’t the app say insert internal/external IP here for clarity’s sake?)

I think it is related to port forwarding and uPNP, but can someone check my settings to make sure at least those are ok?

Remotely, via the internet, can’t connect via my phone to the (linux) laptop. On the network it worked flawlessly and seems a great app. I just installed NoMachine on Linux Mint 20.3 and a client on my (modern) Android phone.

Nomachine server windows 10 not listening on port 4000