https://www.polygon.com/2018/1/28/16942756/monster-hunter-world-xbox-one-launch-matchmaking-problems

Adding to the woes of console players this weekend, Monster Hunter: World’s support team has acknowledged widespread matchmaking problems for the game on Xbox One.

Capcom, through the game’s Twitter channel, told players it was aware of the problem yesterday morning. Xbox’s support Twitter likewise noted the problems this morning.