I've actually been dealing with this for a while. Only with TWC. They're going to fully rewire my entire apartment complex to see if it fixes my packet loss issues. If that doesn't work, I'm switching to uverse ATT.

I've probably spent at least 20+ hours on the phone with their T3 support and had people come out to check the outside lines. In addition they credited me 150.00 to my account. So I'll update after they rewire this weekend.