I had this issue Sunday (around 1-5am PDT), while playing on Durandal (JP Legacy) and Fenrir (JP). I also experienced it Monday on Migardsormr (NA). I somehow managed to play on and off at various times yesterday and this morning with no incidence of it on Migardsormr.

I'm in the SF Bay area on Comcast (or I guess it's supposed to be Xfinity now).