Couldn't start an M+?

Just tried to do a darkflame cleft after burning my key down from a 6 to a 4, and the dungeon wouldn’t start.

I’d put the key in, the activate button would show I could click it, but when i clicked it the window would close and nothing would happen.

Tried resetting the dungeon, reloading UI, turning addons off. Nothing worked.

my group is having the same issue 2 times now. Can’t seem to find any info about it.

bunch of us are getting 5k ping ingame. RFW players are disconnecting too. blizzards servers are fried. thats your problem