i followed your video. do you have other ideas what would be the problem?

I can connect via GHL Connect from my home but not outside my network (is it normal?). i can go to myghl without problem. is the problem could be from GCC itself?
i run firmware 7.08, wifi 6512. What Gcc should i be running? If i want to upgrade GCC do i have to uninstall the previous one? thanks for your help.