WordPress MU

I just installed MU-12-08-05 and I can't login to wp-admin. It just keeps redirecting me back to the login page. Has anyone found a fix for this?

I'm having the same problem and I can't find a fix. I would like to know the results too.

Heres a fix. Note, this fixes imports too!

Thanks ITDamager! This fixed my problem. Now if I could just get my new blogs to work. :)

I have the same problem and the only way I could fix it was by removing the 301 redirect in my .htaccess file, but that's not what I want.

My blog is installed in a sub directory, but I still need to redirect my main domain. Any suggestions?

In my case adding the following lines to config file solved the problem:

define('ADMIN_COOKIE_PATH', '/');
define('COOKIE_DOMAIN', '');
define('COOKIEPATH', '');
define('SITECOOKIEPATH', '');

Thanks VentureMaker,

I assume you are talking about the wp-config.php file. Did you use the code exactly as provided or did you add the paths inside the quotes?

Yes, I mean wp-config.php

And yes, this helped me numerous times. What about you? :) Any luck?

No luck with your method, but thanks. However, I managed to find a solution.

1. Remove the 301 redirect in the .htaccess file.
2. Log in and change your blog URL from domain.com/blog to http://www.domain.com/blog.
3. Log out and add the 301 redirect again.

Worked like a charm! A simple solution to a problem that gave me a lot of headaches.

i was having this problem too.

i fixed this problem by noting that i had the following line in php.ini:

variables_order = "GPS"

when in fact the line ought to have read

variables_order = "GPCS"
or
variables_order = "EGPCS"

this is apparently because the php-style in which wordpress-mu is written depends on variables being propagated through the environment and/or cookies.

once i changed this setting the login loop
ended and i was able to see a different page after logging in.

Thanks VentureMaker, that fix worked for me - WPMU 2.7

Saved me quite the headache you did :)

The odd thing is that what WPMU uses is the default for php, so if its set differently in your php.ini file them someone has changed it for some reason.