I am new, so bear with me please. I have searched the forums and also elsewhere and nothing can help me resolve this although it seems to be an issue that people were encountering often with MU. My host is 1and1 in case that matters.
I setup WP 3.2.1 and enabled a network. I created a secondary site on a subdomain of a different site. For example:
http://www.mainsite.com - works fine
moviefest.othersite.com - has issues
I can log into http://www.mainsite.com/wp-admin fine.
However, on moviefest.othersite.com/wp-admin it created a basic template and seems to exist, but whenever I try to login with either my main super admin account or another administrator account that I setup, it just takes me back to the login page with a redirect in the URL bar. If I use the wrong password it gives me an wrong password message.
I can see moviefest.othersite.com "fine" though. Fine is in quotes becasue I cannot post or modify it at all since I can't log in, but it at least exists and looks like the basic template.
I have tried adding some code to the config.php
define('ADMIN_COOKIE_PATH', '/'); /* define('COOKIE_DOMAIN', ''); */ define('COOKIEPATH', ''); define('SITECOOKIEPATH', '');
but then commented out the cookie domain one because it was giving me an error. I have deactivated all of my plugins except WordPress MU Domain Mapping.
I have cleared my cache and cookies and tried different browsers and different computers all to no avail.
Any further suggestions or obvious things that I am doing wrong would be much appreciated.