Hey, thanks for the report.
This is a known HTTP/2 issue. Please try:
- Settings (CTRL+,) → search for “HTTP/2” → enable “Disable HTTP/2” → restart Cursor
- Settings → Network → Run Diagnostics → send a screenshot of the results
- If you’re using a proxy, firewall, or SSL inspection (Zscaler, etc.), try again without them
- Test without extensions: run
cursor --disable-extensionsfrom the command line
If the issue still happens after disabling HTTP/2, please share:
- Your Cursor version (Help → About → Copy)
- Errors from Help → Toggle Developer Tools → Console
Related threads: Constant connection error and Repeatedly says connection issue when my connection is fine
Let me know if this helps.