I thought I'd chime in saying that I too had this issue on the Windows Insider builds.
However, the most recent build, 20161.1000 (Windows Feature Experience Pack 120.16201.0.0) has fixed this issue and I can now get past the Fairlight loading page.
I wonder - could it be that Resolve is trying to load something on the website? (e.g. newest version to check for an update)
Because I had a similar issue with, believe it or not, VRChat telling me that I don't have a working internet connection (whereas I clearly had) and that was also fixed with this newest Insider build.
The logs for that basically said it was trying to load an API endpoint on their servers and failed, so I thought it might be similar.
Maybe this newest Insider build fixes it for the other users, too