Means something on your network is blocking the file from downloading
-If you are using a special network setup, VPN or firewall or you have also connected your phone or other device to your computer - it can interfere with Sidequest set-up/install.
-Corporate/ public networks will likely have restrictions preventing Sidequest from working.
You need to make changes to your network- turn off any VPNS, Firewalls, Antivirus.