You actually have to contact GoG support for a fresh multiplayer CD Key, since the one they give with the game is a general one that everyone gets (and so it's one that gets you booted).
_________________
Login: The Copper Queen
Cromlech - The Best Copper This Side of Ruathym
Zelly Cys'dina - The Wounded Soul, Also Merchant
Aelynthi Nor'alei - The Bubbly Winged Elf
See me DM-side as:
[DM] Hlal | [DM] The Voice