If you try to login to liveSite and you get the login page again, there are several reasons for this:
1) Your user account does not have privileges to the page or file you are attempting to access. liveSite will display an error message indicating the specific issue in this case.
2) You do not have cookies enabled in your browser settings. Cookies are required to allow you to stay logged into liveSite.
3) If you logging into your liveSite using domain forwarding that is masking your actual domain, this may be the cause of the problem. Please login to your liveSite using the actual domain URL and see if that fixes the problem.