Cursor is failing due to connection error

Support Bug Reports
2

Hey, thanks for the report.

This is a known network issue related to HTTP/2. Please try these steps in order:

  1. Disable HTTP/2: Settings Ctrl+, > search for “HTTP/2” > enable “Disable HTTP/2” > restart Cursor
  2. Run Network Diagnostics: Settings > Network > Run Diagnostics > send a screenshot
  3. If diagnostics don’t help, try without extensions: run cursor --disable-extensions in a terminal
  4. If you use MCP servers, disable them: Settings > Cursor > MCP

Please share:

  • A screenshot of Network Diagnostics (most important)
  • What happens when you try without extensions
  • Whether you use a VPN, proxy, or a corporate network

Related solved topics:

Let me know the results.