Hey, thanks for the report.
“Unknown system error -96” on macOS usually points to a network-level issue. In your case, Zscaler (or its TLS inspection) might be blocking connections to the agent API.
Try this:
-
Test without VPN
Temporarily disable Zscaler and check if the agent works. This will confirm whether Zscaler is the cause. -
Change DNS (if you can’t disable VPN)
Other users with similar issues fixed it by switching DNS to Quad9:
- System Settings → Network → your network → DNS Servers → add
149.112.112.112 - Restart Cursor and test again
Context: there’s a known routing issue via Cloudflare CDN for some regions and providers: [Known Issue] HTTP/2 Connection Failures with SSLV3_ALERT_HANDSHAKE_FAILURE
- Network Diagnostics
Settings → Network → Run Diagnostics. Send a screenshot of the results. This will show exactly where the connection drops.
Let me know if the no-VPN test or the DNS change helped.