Maintenance for the week of November 17:
• PC/Mac: No maintenance – November 17
• ESO Store and Account System for maintenance – November 17, 6:00AM EST (11:00 UTC) - 4:00PM EST (21:00 UTC)
• Xbox: NA and EU megaservers for maintenance – November 19, 4:00AM EST (9:00 UTC) - 12:00PM EST (17:00 UTC)
If you are trying to queue for random with someone who does not have the DLC and you have it, the queue won't work. Give the person without the DLC lead and let him queue, then it will work.