Permissive, I don’t think firewall is a problem.
Strange thing is only some submenu features are inaccessible (image association, basic tasks, active directory, printers, snapins, service settings, power management) while Inventory, Memebership, Delete are OK. Now when I go to Inventory and try to go Associacion I get Group General.

@george1421 Recently I updated fog to the 1.5.6, nothing changed.

@george1421 Nothing happens, after some time i get browser timeout.
In error log I get
PHP Warning: get_class() expects parameter 1 to be object, null given in /var/www/html/fog/lib/fog/page.class.php on line 568

I’m using fog project 1.5.6 based on CentOS 7.
I can image or clone host and groups, however but when I’m trying to access submenu features in host or group like Image association, basic tasks, AD nothing happens. I can only access Inventory, Membership, Delete.
I’ll appreciate any suggestions.