My last four or five matches I have played have not rewarded me XP at the end. Anyone else experiencing this? I'm stuck at rank 6, and no matter how many points i get, it stays at "1450 xp required for next rank" or whatever.

It happened to me once. I switched servers and was all good. First time hearing someone in the single digits having this problem. A lot of people were having this problem during double xp weekend after lvl 30. That's when it hit me.

AFAIK only ranked servers give you XP and unlocks, check your server browser.