Connection failed for all new chats

Support Bug Reports
2

Hey, thanks for the report.

This looks like the known TLS issue over HTTP/2. Please try:

  • Settings → type “HTTP/2” → enable “Disable HTTP/2” → restart Cursor and test in a new chat
  • Settings → Network → Run Diagnostics → send a screenshot
  • Are you using a VPN/proxy/corporate network/SSL inspection (e.g., Zscaler)? Test without it or on another network
  • Launch without extensions: in a terminal run cursor --disable-extensions and test a new chat
  • Send 2–3 new Request IDs from failed attempts, plus errors from Help → Toggle Developer Tools → Console

Similar cases and a confirmed fix with Disable HTTP/2:

Let me know if disabling HTTP/2 helps. If it does, keep it enabled while we investigate.

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