Unable to connect to FIFA18 UT Beta. (XB1)

Been trying for the last 15-20 mins to connect to UT on the Beta. I'm connected to the server (have the "Welcome to the FIFA18 Closed Beta" message in the top right corner) but every time I try to sign in to UT I get the "there's been an error connecting to FIFA18 Ultimate Team" message.

I've closed the Beta and tried loading it again. I've signed out my console and back in and also tried turning the console off and on again. Still nothing. Anyone having a similar problem?

EDIT: I should add, I can connect to UT on FIFA17 without a problem, just seems to be on the Beta.