Same issues for me on Asura, from Italy.
The issue seems to be related to certain areas. I noticed I immediately hit r0 when zoning to Port Jeuno, tested several times. No other Jeuno sub-area has the same issue. I needed to switch to 4G in order to move the character back to another area, switched back to fiber, then had the same issue in Abyssea-Misareux.

Also, error 0260 on POL while logging in. Getting worse apparently.