How long have you had this problem? Is it only since the server move yesterday?
The only issue people would have noticed during the server move is being auto redirected to an ip address. This is still in place on the old server because even though 95% of the internet isp servers updated to the dns changes within a few seconds some of the smaller ones may not have. If you left the browser open and have still not closed the session for the last one you still may be surfing the old server to cause this issue, simply closing and reopening would fix that.
If you are still having problems let me know.