User with full control on a Sp19 site gets access denied

Michel AL HAYEK 187 Reputation points
2021-03-13T14:41:19.41+00:00

A user with full access control on a SharePoint 2019 site is getting access denied. If the user is trying to create a new item or edit an existing one, he will b redirected to the access denied page. any idea about this bug?

SharePoint Server Management
SharePoint Server Management
SharePoint Server: A family of Microsoft on-premises document management and storage systems.Management: The act or process of organizing, handling, directing or controlling something.
2,893 questions
{count} vote

1 answer

Sort by: Most helpful
  1. Echo Du_MSFT 17,141 Reputation points
    2021-03-15T02:07:31.127+00:00

    Hello @Anonymous ,

    Please perform troubleshooting:

    1.Sign in site as an admin and check this user permissions in site-level

    77558-1.png

    2.Sign in the list page as an admin and check this user permissions in list-level

    77540-2.png

    Thanks,
    Echo Du

    =====================
    Updated Answer ====================

    Hi @Anonymous ,

    Make the following troubleshooting

    1. Add this site to "Trusted sites"

    • Open IE browser >> Internet options
    • On the "Internet Options" windows >> Security >> Trusted sites >> Sites
    • On the "Trusted sites" panel, add the site URL and uncheck the "Require server verification Mode" checkbox

    77744-1.png

    • Click Close, and then click "Custom Level".
    • On the "Security Settings - Trusted Sites Zone" panel, scroll to the vety bottom and select "Automatic logon with current user name and password" option
    • Click Ok and Apply.

    77755-3.png

    2. Disable LoopBackCheck with PowerShell

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

    77754-4.png

    3. Delete this user permission and re-grant user “Full Control” permission

    Thanks,
    Echo Du

    ========================

    If an Answer is helpful, please click "Accept Answer" and upvote it.
    Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.