Problem 2 solved… I think. It just took a long time to get to the next screen.
also, after saving the network settings and seeing in the port info that eth3 had an ip, the bottom of the screen still said “continue without network”
For #1, I reviewed the settings for the TangoPBX Distro category, and there’s nothing there that should prevent you from posting. To make absolutely sure, I impersonated you briefly and confirmed that your user is not blocked from posting. Try again.
For #2, if you check the installing walkthru I posted, there’s a note about a delay after choosing the option to install from the grub menu, but it would be easy to miss.