Magento Admin login kicks me out back to the Admin login

Question

After I enter my username and password and click \"Login\" it sends me back to the Login page with NO error messages. The URL changes to include a session key and that\'s it

Answer 1

I had some problems when on a local server. It was on http://server/username/ and so didn't have dots in it. If we changed the settings to be the IP address of the server then it was fine.