Been using NoMachine for quite a while, successfully, connecting to machines on my local network, from my main machine, as a client.
Have now the need to connect TO my main machine, and am getting the above message. Have tried various things, as in adding ports to the firewall/disable the firewall etc.
Main machine is running Tumbleweed (up-to-date), Plasma (up-to-date), other machines mainly running a form of Ubuntu/Mint.
Logs are here
Did find one similar in the forum, which apparently was fixed by a patch, but that was back in 2019, so would assume this has been included in code, since..
V9.4.14 on all.
Thanks.