EA is doing another of their periodic FIFA 15 server maintenance sessions right now, so if you find that Ultimate Team (or EA Sports Football Club) are down that’ll be the reason.
The process began at 10.00pm Pacific Time (6.00am in the UK, so you’re up for some early FIFA 15 if you notice this one) and is scheduled to last half an hour. But we’ve all heard EA’s maintenance estimates before, so don’t be too surprised if 10.30pm goes past and FIFA 15 still isn’t back up yet.
Neither the site article nor the related twitter post give much of an indication of what this maintenance session might be for, but since it’s (planned to be) so short it may not be terribly exciting.
— EA SPORTS FIFA (@EASPORTSFIFA) May 13, 2015
FIFA 15 Ultimate Team players are, of course, eagerly awaiting any sign of Team of the Season appearing. Earlier in the month EA said TOTS would be delayed while various fixes and anti-coin-selling measures were put in place. Late May would be a pretty decent bet for when it might appear, if I had to guess.