Index diagnostics error: "Cookie manager was unable to find any valid cookies"
Summary: For one or more URLs, crawl diagnostics is showing:
Error: Cookie Manager was unable to find any valid Cookies for the configured Forms Authentication Rule.
Cause: This error can happen when the configured content server fails to send a cookie as part of the authentication process.
- Navigate to realtime diagnostics on the Content Sources > Diagnostics > Real-time Diagnostics page in Admin Console.
- In the Manual fetch request box enter the URL that you previously entered as the Sample Forms Authentication protected URL field.
- Compared the headers from the Manual fetch request to the headers captured from your browser performing the same request. Differencies or anomalies may highlight the cause of this issue.