Since a few weeks I am getting errors within phpmyadmin, when I try to switch to the next result page, or if I use the search feature.
I get an red window within phpmyadmin telling me, that an error 403 happened. Errortext: Forbidden (rejected) - It seems that the connection to server has been lost. Please check your network connectivity and server status.
I have no mod_security module installed. It happens when I log in into phpmyadmin as DB-User and also happens as "root"-User.
Could not find any informations in mysql.err or in apache error.log.
What could cause this problem? I am using Apache/2.4.7, libmysql 5.5.58, PHP 5.5.9 on Ubuntu.