Authentication pop-up and ERR_INVALID_RESPONSE in AEM Sites
In Adobe Experience Manager (AEM) Sites, accessing the Author URL displays an unexpected authentication pop-up instead of the standard login screen and returns an ERR_INVALID_RESPONSE error. This prevents access to the Author instance. To fix this issue, troubleshoot service, authentication configuration, and network-related issues affecting the Author instance.
Description description
Environment
Adobe Experience Manager (AEM) Author instance (all versions)
Symptoms
- Authentication pop-up appears instead of the AEM login screen.
- Browser displays an
ERR_INVALID_RESPONSEerror. - Unable to access the AEM Author instance.
Cause
A temporary service or configuration problem, recent changes to authentication settings, or network-related issues affecting the AEM Author instance.
Resolution resolution
Follow the steps below to resolve the issue.
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Restart the affected AEM Author instance to clear any temporary service or configuration issues.
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After the restart, attempt to access the Author URL again to check if the issue is resolved.
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If the problem persists:
- Review any recent changes to authentication configurations (such as changes to user authentication methods or SSO integrations) or network settings that may affect access to the Author instance.
- Check the AEM Author instance server logs (such as
error.logandaccess.log) for errors or warnings related to authentication or failed access attempts during the time of the issue. - Ensure that you’re using the correct credentials when prompted by the authentication pop-up.
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If the issue continues after these steps, contact Adobe Support for further assistance.
To verify the resolution, confirm that the AEM login screen loads successfully and that you can log in without encountering the authentication pop-up or ERR_INVALID_RESPONSE error.