I'm migrating a client's site to a different server because we're changing web hosts. The domain name still points to the old site for now and I either use an ip address or a temporary url to preview the new site. However, since I moved it, I can no longer log in, I get an "access denied" error message. Is this a known issue? How can I resolve it?
EDIT: I oddly don't have this problem when I download the site to my hard drive and run it locally.