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hey i was just wanting to play with my brother on halo custom editon but once i find the game and try to join it always say invalid cd key i have no clue how to fix this and some help would be great.thanks.[Edited on 02.20.2010 10:47 PM PST]
You can't have 2 of the same key in a server at the same time.
Something smells fishy...
You must have installed Halo using the same serial key on both yours and your brother's computer.
"-blam!-" - The most commonly used phrase on Xbox Live."Ooooh, pretty blue thing," - My sister said that the first time she saw a live Plasma grenade.
Posted by: Agemenmon mattYou must have installed Halo using the same serial key on both yours and your brother's computer.Yes, and this cant happen.
It's too late, the bungie hit teams have already been dispatched to your house. Since it's been 3 days, and you haven't logged in since then I'm just going to assume you are already dead.