Yay this worked!!!
for like 10 minutes, then I started getting latency/disco's agian. FML.
i think i may have fixed the problem. Here's what i did:
1) flush your dns cache. From the desktop, hit the start menu icon, then type "run" in the search programs and files field, then type "cmd" at the next window and "ipconfig /flushdns" in the command prompt that pops up.
2) delete the swtor cache. If you installed at the default location, navigate to c: => program files (x86) => electronic arts => bioware => star wars - the old republic => swtor and delete "diskcachearena." this file is created every time you start swtor, so it's safe to delete.
3) run the repair tool. Log in with the launcher, hit the gear in the lower left corner before starting swtor and run the repair tool.
Honestly, i don't know which of these three (or maybe a combination?) did the trick, but i've been running around the gtc for fifteen minutes now without a hitch and the problem seems to be the worst around high traffic areas.
Edit: I'm running windows 7.