Hey, thanks for the report and the screenshots. I can see the web login completes (All set!), but the Return to Cursor button doesn’t log the app in.
The main reason is your version. 3.7.19 is very old, and the whole browser to app login handoff was rewritten in recent releases. On 3.7.19 this handoff just doesn’t finish.
What to do, step by step:
Download and install the latest version from Cursor · Download. It’s important to get it from there, not a third party mirror. This should fix it by itself.
After installing, click Log In in the app and finish the browser step quickly. The app only listens for the callback for a limited time (about 3 minutes). If you wait too long to enter the code, the login expires.
Check that the cursor:// handler is registered: press Win+R then type cursor:// and it should prompt to open Cursor.
If you’re using a VPN, keep the same state in both the browser and the app. Either both on VPN or both off.
If it still gets stuck after updating, do a clean reinstall. Fully uninstall Cursor, then install again from Cursor · Download. That’s helped in similar cases.