How to: Multiple NWN clients working through one router
If you have more than one computer with NWN installed on them (with different CD keys, of course) and wish to have both log onto Narfell at the same time, do the following:
1. Open the "nwnplayer.ini" file located in your NWN folder (default location is "C:\NeverwinterNights\NWN".
2. Find the line that starts "Client Port=" located in the "[Profile]" section of the file. It should have a number such as 5120.
3. Make sure that port number is different between all the computers. The range of valid port numbers should be 5120-5300. So make one have 5120, then 5121, 5122, etc.
4. After changing the port number, save the file.
5. Run NWN and have fun!