Connect with GuiDBedit Tool to Security Management Server / Domain Management Server.
In the left upper pane, go to 'Table' - 'Global Properties' - 'properties'.
In the right upper pane, select the 'firewall_properties'.
Press CTRL+F (or go to 'Search' menu - 'Find') - paste fw_dns_xlation - click on 'Find Next'.
In the lower pane, right-click on the fw_dns_xlation - 'Edit...' - choose "true" - click on 'OK'.