Attainable Repair For Xbox 360 Backwards Compatibility Sign up Error

So I’ve a repair for this drawback. Not saying it’s common, nevertheless it labored for me.

So that you’ll want to verify your MTU is 1400 or above. Go to your multiplayer connection settings and check it. In case your MTU is beneath 1400 (in my case it was 1358) then you definately’ll must both do one thing along with your router or use a distinct connection. My MTU wouldn’t go above 1358 on my wifi so I attempted my Verizon Hotspot and it received it above 1400. I attempted signing in on the Xbox 360 recreation I used to be enjoying and it labored. I haven’t had to make use of a connection that was 1400 or above since then both. It simply lets me register each time with out a drawback. Hopefully this helps.