I agree with the suggestions which others have given, but there is another possible cause. If you're both using the same settings and the VPN makes it look like you're both on the same IP address, the server may be becoming confused over which player is which.
Edit the nwnplayer.ini file. Find the line Client Port=5120. For one player, change the number (I suggest to 5121). Save the file and exit.
This is a problem common to all nwn servers. It happens whenever two or more players log in to the same server using the same client port number, using the same IP address. Somehow, the server can't tell which player is which. If you make sure the client port is different for each player, that permanently solves the problem.
Even if this isn't the problem, it won't hurt to try it.
Modifié par Melkior_King, 23 mai 2013 - 06:41 .