cant play halo 3 co op. please help.

i cant play halo 3 co op with my friend, i have been able to play it before with him but now when he trys to join my game it says that its not compatable and that he has a moderate nat. it also says same for me if i try and join his game. i also cant play either L4D, it keeps saying connection failed. i also cannot chat with him unless it is in the in game chat. i dont seem to have a problem with anyone else. could some one please help. thanks


Question Info

Last updated July 4, 2018 Views 2 Applies to:

Sounds like the issue lies in your friend's NAT setting. Please ask him to work through the steps in this guide, so that you can play together on LIVE.

Did this solve your problem?

Sorry this didn't help.

Great! Thanks for marking this as the answer.

How satisfied are you with this reply?

Thanks for your feedback, it helps us improve the site.

How satisfied are you with this response?

Thanks for your feedback.