Can't join Multiplayer game

Hey everybody,

I recently tried joining a multiplayer game for the first time. I do get into the lobby, but can’t get in the game. After the countdown, everyone else starts racing (gets this little steering wheel symbol in the lobby) but I’m stuck in the lobby. Already tried different sessions and rebooting the Xbox, but no success.
Network-wise I should be fine, ports forwarded in the router, open NAT.

Does anybody have any tips for me?
Thanks in advance,
Mittensne

Don’t have the same exact problem, I tried today to play online and after it says joining lobby for ages then connecting game to server it just says unable to join. i have a wired 250MB connection and open NAT it has found a match The whole MP section looks a mess they must have gotten the same person who turned XBLA parties into a useless slow app to design it the new policy as MS appears to be if it works, break it and don’t fix it