Maintenance for the week of November 17:
• [COMPLETE] Xbox: NA and EU megaservers for maintenance – November 19, 4:00AM EST (9:00 UTC) - 12:00PM EST (17:00 UTC)
I had the same problem. I submitted a ticket at around 1 pm CEST today and the tech support people were trying to persuade me it was the fault of my PC
Arkhanis Darvel & Rock the Bear | Warden | PC-EU Adventurer, skirmisher, bard-amateur