"Connection with server lost" then 689 players in queue, no wifi issues

Date & Time: 7 October 21:18 - 21:33 Server Time
Frequency: Once with long queues but DC's quite often
World name: Light/Zodiark
In-game time:
Area and coordinates: North shroud
Steps:
1. Disconnects me
2. Wifi (and ethernet) is up and running just fine
3. Goes to home screen and tries to go back in, hit with the "This World is currently full" popup...with 689 people in front of me apparently. Never seen these long queues (haven't played when an expansion first was released but I have for big patches)
4. Still waiting 15 min later
5. Not all FC members booted off so not sure if it's location or just luck

Connection Specs
- Type of internet connection/provider: Ethernet

That sounds very much like a server or network problem where lots of people get kicked off the server all at once. When they then try to log in again, all at once, you get those long queues.

Yeah random mass DC, we were on the ex trial and suddenly 6/8 had dc. Only me and some english girl stayed on, others had 600+ wait.