Originally Posted by: Plumjellybaby 
Still can't play multiplayer and I don't get the error messages listed in the post. Mine is "failed to find game session", no matter how many times I try. There was a brief window when I could play multiplayer fine, so it can't be my connection, but that was months ago and no joy since.
The list of possible causes are legio and believe me chances are always there that it can be your internet connection due to changes and updates or even firmware updates from your ISP or router manufacturer that you as the end user are seldom aware of. Be it as it may, can you give more detail of your own system ex do you use wi fi or cable, are the ports on your router opened, did you try a hard reset, what is your latancy/ping reading, what country are you in, do you meet the minimum specs prescribed by XB for MP on download speed etc. The more info you give, the better the chances for assistance.
Better than always being right is knowing when to shut up
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FH, FM3, FM4, FM5, FH2, FM6, FM7