I just came across the following while browsing the Bioware NWN forums:
Chris Priestly
Community Communications Coordinator
Joined: 17 Oct 2001
From: Behind an Evil desk in Marketing.
Posted: Tuesday, 22 July 2008 11:36AM
BioWare's websites, the NWN Master Server, and NWN Online Authentication will be offline from Monday, July 28 at 7 p.m. MST to Tuesday, July 29 6 a.m. MST as we perform network maintenance.
We apologize for the inconvenience.
I don't know for certain if this will effect our ability to log onto Hala, but I believe that it will. If anyone knows differently please speak up. In the meantime, plan your Events/playtime accordingly.
(Maybe think about taking your Girlfriend/Spouse/S.O. out someplace nice that night instead of sitting in front of the computer screen.)
I've gotten into servers while the master server is down as long as they were in my history or favorites. Still, best be prepared with your Hala patch to prevent withdrawal if you're among those without a spouse/significant other.