Maintenance for the week of April 20:
• NA megaservers for patch maintenance – April 20, 3:00AM EDT (7:00 UTC) - 12:00PM EDT (16:00 UTC)
• EU megaservers for patch maintenance – April 20, 7:00 UTC (3:00AM EDT) - 17:00 UTC (12:00PM EDT)
Why do I keep getting matched with premades and how do I stop it
The MMR system won't ever entirely prevent you from being matched with premades unless ZOS changes it to do so or institutes a split queue.
Though higher MMR likely means facing more premades, who tend to also have a higher MMR.
What can you do?
Lose a bunch to drop your MMR?
Play on a different character in a lower MMR?
Beg ZOS to institute a split queue? (IMO, unlikely)
Play with friends/guildies in your own premade?
Yeah, there arent many options, and none of them great.