: Ensure your PC has a stable internet connection, as 3uTools must reach Apple's servers to request the SHSH signature.
3uTools must communicate with Apple’s servers ( gs.apple.com ). Corporate networks, VPNs, or aggressive firewalls (including Windows Defender Firewall) can block these requests. 3utools Error Unable To Request Shsh
Ensure your internet connection is stable and not blocked by a firewall or VPN. : Ensure your PC has a stable internet