Before anyone says it, I have actually checked some other problems like my own, (there are quite a few on the internet)but they don't relate to my problem and they are over 3 years old.
I'm getting the Information could not be retrieved from the halo 3 servers, and this is AFTER I opened ports 88, 3074 TCP/UDP, I did this so I could easily connect to sessions on RDR (which works perfectly now), but after doing this, my halo is no longer connecting.
I'm using a Thomson SpeedTouch 716 v5 WL. I really want to get this fixed before reach.
I'd appreciate any help, thanks :D