I had been having this problem, too, and the peculiar thing was that I was able to log in on my phone over 3G, and I had someone else log-in over a different network. Anytime I tried to log in under my WiFi, however, it just hung there for ages and then I got the 324 error. I suspect it had something to do with my Qwest router or ISP, because a friend using Qwest was unable to log in as well.
This is how I solved the problem:
I uninstalled the version 3.0.5 that I had just recently installed and replaced it with 2.9.1. Then I was able to log in. From the dashboard I upgraded to 3.0.5 and am now able to log in again, whenever I want, from my network on any browser. I’m not entirely sure why this has changed anything, but it is worth giving a shot if anyone out there has tried everything else and just can’t get it to work.