A simple restart can often resolve temporary communication glitches and refresh the JSON Web Token (JWT) used for server authentication. 2. Verify Network Connectivity Ensure your device can reach the Sophos infrastructure.
Expired or invalid JSON Web Tokens (JWT) requiring a system restart to refresh. sophos download of macendpoint failed from server
Visit Sophos Central Status to see if there are ongoing server-side issues. A simple restart can often resolve temporary communication
macOS security features (like Full Disk Access) blocking the Sophos Installer or SophosUpdater . sophos download of macendpoint failed from server
If you are on a corporate network, try connecting to a mobile hotspot to rule out firewall or proxy blocks. Whitelist Domains: Ensure your network allows traffic to: sus.sophosupd.com sdds3.sophosupd.com sdds3.sophosupd.net 3. Fix Permission Errors (macOS 13+)
Firewalls or proxies blocking connection to Sophos update servers (e.g., sdds3.sophosupd.com ).