Client throws connection error when in fact client has a bug

Support Bug Reports
2

Hey, thanks for the report. The issue is similar to known terminal freezing problems on Windows in versions 2.1.x - 2.2.x, especially when running npx commands.

Similar reports: Cursor 2.1.46 keeps freezing and is not usable

For now, please try:

  • Disable HTTP/2: press Ctrl+, → search “HTTP/2” → enable “Disable HTTP/2”
  • If using PowerShell 5.1 (built-in Windows), update to PowerShell 7.x or switch to Git Bash
  • Run without extensions: cursor --disable-extensions and see if it helps
  • Close all open tabs/chats, then restart Cursor
  • Check Settings > Indexing & Docs - if error appears, try opening a project subfolder separately

Also, you can try:

  • Temporarily disable any MCP servers in Settings > MCP (if any)
  • Check Process Explorer: press Ctrl+Shift+P > Developer: Open Process Explorer to see what uses CPU during freeze

I’ll pass this to the engineering team for investigation.