I'm having troubles logging in to PhpMyAdmin.
When I press "login" after typing in my credentials, it just keeps going back to the login screen. I could login perfectly a few days ago. I don't know what I've done that's causing this.
I can login to mysql perfectly in the shell (mysql -D database -u user -ppassword). My sites are running as expected. What could this be?
Edit: logging in works fine in Firefox, but not in Chrome or IE
See reply #4 in this topic: https://sourceforge.net/projects/phpmyadmin/forums/forum/72909/topic/4479151
Thx.
After googling this issue for ages I finally figured out what it was in my case. The problem was that google chrome does a validity check against the timestamp of the cookie (or something like this). Simply make sure that the server with PMA installed on it has the correct date/time settings and isn't out of sync. This should fix your problem.
If all your configurations for phpMyAdmin are correct but the problem still persists, it could be due lack of disk space. If this is the case, you can use df -h to diagnose the space problem.
My scenario was that a cron was used to create mysqldump of a large database until the space ran out. After deleting the sql dumps, phpMyAdmin logged in as it should.
Hope it helps.
This occurred when i switched to HTTPS, so just check that, could also be the issue.