Introduction

Microsoft's Universal Print service offers organizations a cloud-based print management solution, streamlining the printing process by eliminating the need for on-premises print servers. However, users may encounter the error code 0x8086000c, accompanied by the message "Failed to get auth header," which indicates authentication issues within the Universal Print framework.

Understanding Error 0x8086000c

The error code 0x8086000c signifies that the Universal Print service is unable to retrieve the authentication header necessary for processing print jobs. This failure typically stems from:

  • Azure Active Directory (Azure AD) Authentication Failures: Issues with user credentials or Azure AD configurations can prevent proper authentication.
  • Service Configuration Errors: Misconfigurations within the Universal Print connector or related services may disrupt authentication processes.
  • Corrupted System Files: Essential system files, such as INLINECODE0 , may become corrupted, leading to authentication errors.

Common Causes and Solutions

1. Azure AD Authentication Issues

Cause: The Universal Print service relies on Azure AD for authentication. If the user's Azure AD account is misconfigured or lacks the necessary permissions, authentication failures can occur. Solution:
  • Verify Azure AD Account Status: Ensure the user's Azure AD account is active and correctly configured.
  • Check Licensing: Confirm that the user has an active Universal Print license assigned.
  • Reauthenticate: Sign out and sign back into the Azure AD account to refresh authentication tokens.

2. Service Configuration Errors

Cause: Incorrect configurations within the Universal Print connector or related services can impede authentication. Solution:
  • Restart Universal Print Services:
    • Open the Services application (INLINECODE1 ).
    • Locate the "Universal Print Connector" service.
    • Right-click and select "Restart."
  • Reset Universal Print Connector:
    • Open the Universal Print Connector application.
    • Navigate to "Settings" and select "Remove Connector" to unregister it.
    • Re-register the connector by signing in with an Azure AD account and following the setup prompts.

3. Corrupted System Files

Cause: Essential system files required for Universal Print operations may become corrupted, leading to authentication errors. Solution:
  • Run System File Checker (SFC) and Deployment Image Servicing and Management (DISM) Tools:
    • Open Command Prompt as an administrator.
    • Execute INLINECODE2 to scan and repair corrupted system files.
    • If issues persist, run INLINECODE3 to repair the system image.
  • Replace Faulty DLL Files:
    • Locate a healthy version of the INLINECODE4 file from a trusted source.
    • Replace the corrupted file in the INLINECODE5 directory.
    • Register the new DLL by running INLINECODE6 in Command Prompt.

Best Practices for Preventing Authentication Errors

To minimize the occurrence of error 0x8086000c and ensure a stable Universal Print environment, consider the following best practices:

  • Regularly Update System and Drivers: Keep Windows and printer drivers up to date to prevent compatibility issues.
  • Monitor Azure AD Configurations: Regularly review and update Azure AD settings to ensure proper authentication configurations.
  • Implement Robust Credential Management: Use secure methods for storing and managing credentials to prevent corruption or unauthorized access.
  • Conduct Periodic System Health Checks: Regularly run diagnostic tools like SFC and DISM to identify and repair potential system file issues.

Conclusion

Error 0x8086000c in Microsoft's Universal Print service is primarily related to authentication challenges, often stemming from Azure AD misconfigurations, service setup errors, or corrupted system files. By understanding the root causes and implementing the outlined solutions and best practices, organizations can effectively troubleshoot and prevent this error, ensuring a seamless and efficient cloud-based printing experience.