So, me and a friend both bought NWN2 here on GoG and, after having some fun playing on our own, decided to try and play it together.
But! We have problems! Whenever we attempt to join the game each of us make (Through Direct Connect), it says it is trying to connect and then that server is not responding.
HE is able to join internet games on the listing when using the Neverwinter Nights 2 Client Extension mod-thing, but I am not.
My firewall is turned off.
My roommate who has the Diamond edition can not join either of us either, getting the same error (Not responding), but can also connect to online games using the Client Extension.

I really did try my very best with google-fu, but I have found no solution or even anyone having the same problem!

Does anyone have the ability to help me out here?

came across this post

I can not hack the server's verify which means you must do the same work on your server with the patch.

And, you also need to change some options in your nwn2player.ini:

Game Region=0
CD Banned Behavior=0

If it can not be work ---->

just change your hosts file which you can find in your system32 folder.

Add this:

0.0.0.0 nw2master.bioware.com
0.0.0.0 nwn2.master.gamespy.com