Has you probably notice, if you are trying for a Q in a dungeon and it show’s “Total Waiting Q : 100 people” its a lie. And you will be matched to nothing for the entire day even being in a party and with ur friends in the same Q. This happened to me after I crashed during a Match Making Q to a 200 dungeon, at 10am(server time). And this also spread to my other characters so, this is how I manage to fix it.
Step 1: Login in to your server
Step 2: Before join the game, switch your pet to another character
Step 3: Try join the game now, without a pet.
Step 4: The Q should be running normally now. (You can now go get your pet)