Problem description: No access to the DSS V6 webGUI, page is blank, DSS V6 Console screen works.
Solution: Restart Apache server inside the DSS V6 console screen:
1) Enter console tools (CTRL + ALT + T)
2) Select Addons
3) Select Apache control and disable apache
4) Enter Apache control again and enable it
5) WebGUI should be working properly
Please notice that Apache control addon is availible in versions 6_up95 and higher.