Constant 2002, 90006 errors with Comcast Xfinity

[Sentper]

Hi! This started about a week ago; I couldn't engage many enemies at once or do duties without everyone and everything around my character freezing in place, with only the chat working for some reason, before one of two things happening: Everything happens really quickly and suddenly before I get back to the flow of things (sometimes resulting in me dying), or I'd get a 90006 error and be disconnected entirely.

At present, I can hardly even log into the character select screen without getting 2002 errors, and when I CAN pick a character, it's only a matter of a seconds before my received data drops to 0, and I get a 90006 again. It's also happened in Behemoth, Brynhildr and Coeurl.

This isn't looking like it's changing much over these days, and it's starting to get really awful!