Cursor recentConfig
Cursor: "Connection failed" / network error on Windows 11
Connection failed. If the problem persists, please check your internet connection or VPN.
- Affected versions
- recent
- Fixed in
- —
- Last verified
- Cursor (recent)
Root cause
Cursor can't reach its backend — commonly a VPN/proxy, corporate firewall, or DNS issue blocking the API host.
How to reproduce
Use Cursor behind a corporate proxy/VPN on Windows 11; AI requests fail with a connection error.
Solutions (2)
Ordered by community votes. Always check the verified version before applying.
27
#1Applies to recent
Disable the VPN/proxy and retry; if it works, add Cursor's API host to your proxy/firewall allowlist or configure the HTTP proxy in Cursor settings.
Last verified: Cursor (recent) · community
12
#2Applies to recent
Verify basic connectivity and DNS (try another network or mobile hotspot) to rule out a local network/DNS block.
Last verified: Cursor (recent) · community