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What can I do if I cannot mount an SMB share on Windows Server 2019?

Last Updated: Jun 29, 2021

This topic provides a solution for an error that may occur when you mount an SMB share on Windows Server 2019.

Issue

When you mount an SMB share on Windows Server 2019, an error occurs.

Solution

  1. On an on-premises Windows client, press Win+R to open the Run dialog box. In the Run dialog box, enter gpedit.msc in the Open field, and then click OK.

  2. In the left-side navigation pane of the Local Group Policy Editor dialog box, choose Computer Configuration > Administrative templates > Network > Lanman Workstation.

  3. In the Setting section of the Lanman Workstation page, click Enable insecure guest logons.

  4. In the Enable insecure guest logons dialog box, select Enabled. Click Apply

  5. Mount the SMB share.