Cloned moodle site log in problem

I can't log in - I just stay stuck on the login screen (Extracted from Moodle)

This may also apply if you are seeing “Your session has timed out. Please login again” and cannot log in.
The following are possible causes and actions you can take (in no particular order):

• Check first that your main admin account (which will be a manual account) is also a problem. If your users are using an external authentication method (e.g. LDAP) that could be the problem. Isolate the fault and make sure it really is Moodle before going any further.
• Sessions may not be configured properly on the server. You can test this by calling the script http://yourserver/moodle/lib/session-test.php.
• If your server is on shared hosting check that you have not reached your disk space quota. This will prevent new sessions being created and nobody will be able to log in.
• Carefully check the permissions in your 'moodledata' area. The web server needs to be able to write to the 'sessions' subdirectory.
• Your own computer (not your Moodle server) may have a firewall that is stripping referrer information from the browser. Here are some instructions for fixing Norton firewall products.
• Try deleting the sessions folder in your moodledata directory (anybody currently logged in will be thrown out)
• Try deleting cookies on your computer and/or try another browser or another client computer
• In Site Administration > Server > Session handling, try setting a value for 'Cookie prefix'. You can also do this by setting $CFG->sessioncookie='something'; in config.php. This is especially true if you are using multiple Moodles on the same browser.
• Make sure you have not removed or changed the Password Salt value(s) in config.php. If passwords were created using a salt the correct salt must be in config.php for those passwords to continue to work. This feature was optional since Moodle 1.6 but has been applied by default since 1.9.7.
• Do you have a .htaccess file in your Moodle folder (or its parent directories). If so, is there anything in there that might be causing trouble (strange redirects, access restrictions etc.)?
• You are using the correct username and password, yes?