The official Lineage II forums and website will be undergoing maintenance tomorrow, Tuesday August 11th at 5am PDT / 7am CDT / 8am EDT / 1pm GMT. The forums will be down for approximately 30 minutes at this time.
The forums will also be down for additional time on 8/11 as mentioned in this post (http://boards.lineage2.com/showthread.php?t=204318). Downtime will be minimal.