I would love to have Skynet back though. With Skynet I experienced the same issues with my older AC88U unit. Skynet was working great for a couple of years then one day it stopped working, i tried reinstalling and it just gave the "Skynet not installed message"
I was certain that if I got a new router (AX88U) that it would work again but alas it's the same issues again. I did post the question here on this forum and nobody seemed to be able to help with it back then, so I ended up giving up on it. It was suggested that github was blocked on a router or ISP level but i can reach github perfectly fine with and without VPN without any issues.
Maybe it's the repositories that can't be reached for some reason, not sure how i can test that but it's a very strange issue that only I seem to have
Here's the link to me posting about this issues a couple years back post #14 -
https://www.snbforums.com/threads/skynet-install.46330/