I was playing infection and in the middle of the game it said connection lost, I am now banned for 2 days
You do have a few more DNFs though, 8 or so from 22 / 05 to 27 / 05, they probably have something to do with the ban. There is a forum for this, try posting there.
That sucks man. I was disconnected 3 times today on Infection too, it especially sucks when you’re doing really well in a match only to get booted out. 343i needs to fix this.