A connection interruption prompt appears when sending a message

Hey, thanks for the report. I’m seeing the same stack trace in a few recent cases.

Try this workaround that helped other users with the exact same error:

  1. Rename the project folder in File Explorer (for example MyProjectMyProject_v2)
  2. Open the renamed folder in Cursor

This resets a corrupted local index. Here are two resolved threads with the same stack trace: Connection Error / Stalled Agent requests for hours - #9 by Fares_Bendhiab and Connection error, again and again.

If that doesn’t help, please share:

  • Network Diagnostics: Cursor Settings > Network > Run Diagnostics (screenshot)
  • Console errors: Help > Toggle Developer Tools > Console (screenshot if you see any red errors)
  • Are you using a corporate VPN or firewall (Zscaler, McAfee, etc.)?

The team is aware of this issue. Over the past few days, a few users have reported the same stack trace.

Let me know if this helps.