This morning, I decided to join a party with a friend. Since I had Moderate NAT at the time, I decided to fix it to Open by doing my simple method of disabling my wireless on my laptop, resetting my router and waiting 1 minute.
Instead of working like it normally does, I only connected to my network and internet, but not Live. It said that I do not have a sufficient MTU setting. Problem being, my MTU is already on Auto. I tried it on the max (1500) and Auto, but neither worked. I've done every trick so far to try to connect, but it hasn't worked; resetting my network hardware and retrying, waiting 1 minute after resetting router, restoring defaults on my Network configuration settings on Xbox, etc. I've been trying for a good 7 hours, and I would really like some help.
Also, if it helps, I have Comcast internet, and a Linksys router.