MMOMinion

if you use 1 ffxiv key to start 2 servers(jp server and na or eu server) then your first login sever will be 90k disconnection after 2 hours.
I did not see 90K disconnecting before the 2.1 patch（1 ffxiv key login 2 severs）.

I have been getting 90k from PVP as well. Sadly, I haven't been watching it so I don't know when it happens, but it has been happening. It doesn't happen with any other mode.