This notification is displayed "No activity within 1440 seconds; please log in again"
If it logs out check session.gc_maxlifetime in your /etc/php.ini
Default session maximum lifetime is 1440 seconds, if u r increase this time, open /etc/php.ini file and search
session.gc_maxlifetime = 1440 (default in php.ini file)
session.gc_maxlifetime = 86400 (means 24 hours)
#vim /etc/php.ini
session.gc_maxlifetime = 86400
:wq (save&quit)
After change, Restart the Webserver
#service httpd restart
Its working
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Thnxx