We both have it but when we played on our server it always kicked one off because we used the same ip even though we connected through different ports and both of us have a genuine game, we shut down the server and uninstalled the game after that.
only problem with nq is guids, if people don't have one or don't have proper guid they can't connect. also is no opinion to add allow more then one person with out a guid so they will keep getting kicked.
There seem to be a hardware issue with our dedi box the host is aware of the issue and is working on it. Hopefully it will be back up as soon as possible. Sorry for any inconvenience.
We would like to apologise for the server issue, for the time being we will be redirecting to the dedibox server. Ip 109.70.149.28:27960 or nd.teammuppet.com or etpub.teammuppet.com