In lighttpd.conf (on Debian /etc/lighttpd/lighttpd.conf) add "broken-scriptfilename":

::

 fastcgi.server = ( ".php" => ((
                         "bin-path" => "/usr/bin/php5-cgi",
                         "socket" => "/tmp/php.socket",
                         "max-proc" => 10,
                         "broken-scriptfilename" => "enable"
                  )))

otherwise you will get the error saying "There has been no contact with the remote server for several minutes." after logging in on DIMP.

In php.ini (on Debian /etc/php5/cgi/php.ini) enable PATH_INFO:

::

 cgi.fix_pathinfo=1