Yup, also been gettin' this. I'd log in, booted, log in, booted, rinse and repeat. Restartin' the client and the computer didn't help. Messed around on other things and didn't lose connection while off the game. Went back on and it was back to gettin' booted a minute in again. So whatever it is is on SE's side. Hopefully it's bein' looked into.