Hello all! I always see threads about how to open NAT, but never even thought of looking into them until I switched to Charter. Now my NAT type is set to "Moderate" according to Halo: Reach. I did a little searching around and found that enabling UPnP could help. I did this. I also disabled IP Flooding Detection and Firewall Protection. And then went to Port Forwarding and forwarded the specified ports.
Now, when I did this, my NAT type changed to OPEN, horray! BUT! My brothers console (which is connected to router via ethernet) now has Restrcited/Closed NAT. Why? And another thing, even though MY Xbox (wireless) says OPEN NAT, I've been getting disconnected from matches a LOT more frequently, and sometimes it will go to black screen for me in Halo Reach and only me, and then I'll come back and be dead since everyone else was still playing.
My ISP is Charter Communications.
My router is a Motorola SURFboard SBG941. (I see alot of sites that use the SBG900, but almost NONE that have SBG941)
My Xbox is wirelessly connected and has an Open NAT, but I still frequently get disconnected or put on standby (black screen on Reach).
My brothers Xbox is connected via ethernet and has Restricted/Closed NAT and also gets disconnected or put on standby frequently.