SharePoint web site keeps on prompting for authentication error


In this post we will discuss how to resolve the error if SharePoint web site keeps on prompting for authentication error. When you access SharePoint web site from the Sharepoint server, it keeps on prompting for authentication.


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Solution:
To resolve this issue you need to create a key for disable loop back check in registry.


Method 1:
Run this PowerShell command:

New-ItemProperty HKLM:\System\CurrentControlSet\Control\Lsa -Name “DisableLoopbackCheck” -value “1” -PropertyType dword

Method 2:
You can also navigate to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa in registry and create the dword32 for DisableLoopbackCheck, modify the value to 1.

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