I have tried from my office it show available download site. Then I used same installer (setup-x86_64.exe) at home it not show anything. Both my pc (office and home) i set up go
I just met the same problems. At the very beginning, I chose the first option which is directly connect, but I can not get any downloading websites as the image showed above. Then I tried to back and chose the second one which is select your internet collection, the same result is displayed on the screen.
The solution is that we have to restart the installer and directly choose the second option. If you still don't get any websites, please be patient, try one more but still need to restart the installer. I just tried three times, maybe four times, which I can not remember, but it worked finally.
Hoped that can help you guys.