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Browser Sign-in Does Not Return to VS Code

Use this guide when authentication succeeds in a Chromium-based browser but the Reasoning extension times out while waiting for the browser to return control.

Check local network permission​

Some Chrome and Edge versions require site permission before the AI Cockpit web application can contact the local callback opened by VS Code.

  1. Keep VS Code open.
  2. Open the site information or permissions menu for the AI Cockpit sign-in page.
  3. Find Local network access when the browser provides that permission.
  4. Allow access for the AI Cockpit site.
  5. Reload the browser page and run AI Cockpit: Sign in to AI Cockpit again.

The label and location can vary by browser version. Change this permission only for the expected AI Cockpit domain.

If the permission is not available​

Confirm that the browser, firewall, proxy, or endpoint-security policy allows the local callback. Try the organization's supported browser profile and review the redacted authentication error in the Reasoning output channel.

Do not share callback URLs, authorization codes, cookies, or tokens with support.