I actually thought it was fixed today, I was able to log into the game from about 10am till now, 9:30PM. (PS4)
It's strange but like yesterday it happened when I was located in the South Shroud. (Or walked by it.)
Server: Sargatanas (NA Legacy)

No idea if this has got a connection. The place is very crowded as well, and yesterday it was as well when I faced the disconnecting issues. Now I begin to wonder if it's simply having trouble connecting us Europeans to the NA server when it's in crowded places?

Someone PM-ed me as well, as I was in the progress of disconnecting. Gave me a tip to put up with a VPN like Pingzapper (After installed restart PC) Since it fixed the problem for said person.
Yet, I'm on PS4 and cannot test this. But I trust his tip and am therefore hoping it will work for others. (If this hasn't been suggested here yet in the last few replies. If so, I apologize!)