SMB sharing not working after windows 10 update Build 2004 update

Anonymous
2020-06-20T02:30:38+00:00

Any help is  appreciated

Windows for home | Windows 10 | Internet and connectivity

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Monkey57 3,535 Reputation points
2020-11-03T02:21:51+00:00

Win10 20H2 fixes the issue.

Previously when 2004 broke smb1, I rolled back.

There was no registry change or any other modification made to the system.  After Win10 20H2 upgrade was installed via Windows Updates;  SMB1 worked as it did before the upgrade.

Thank you Microsoft.

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  1. Anonymous
    2021-02-09T17:10:17+00:00

    Not on my Win 10 Pro! 

    Ethernet only, all SMD versions selected.

    Made all recommended changes in Services and RegEdit. Still no go.

    Asks for credentials on any attempt to map drive on Win 10 Pro running 20H2.

    The Win 10 Home PC can access my OMV NAS without issues.

    Something basic is busted. I even checked my Ethernet cable.

    At wits end...

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  2. Anonymous
    2021-02-03T17:59:06+00:00

    Any help is  appreciated

    I attempted to remove smb1 via Programs & Features, reboot, then re-add.  I was able to re-add it but it still didn't work.

    Then I used Powershell commands I found on link below.  It worked for me on 2 of my workstations.

    https://docs.microsoft.com/en-us/windows-server/storage/file-server/troubleshoot/detect-enable-and-disable-smbv1-v2-v3

    Perhaps the "on-line" featureset is newer than the local feature set.

    Here are the commands.  Run Powershell as administrator.

    Get-WindowsOptionalFeature -Online -FeatureName smb1protocol

    Disable-WindowsOptionalFeature -Online -FeatureName smb1protocol

    Enable-WindowsOptionalFeature -Online -FeatureName smb1protocol

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  3. Anonymous
    2021-01-31T05:17:46+00:00

    Thanks for your comments.. I will look over what you sent..

    Appreciate the information

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  4. Anonymous
    2021-01-30T23:27:09+00:00

    We had similar problems also with Win 10 20H2 and Server 2019

    We fixed it with this article:

    https://docs.microsoft.com/en-us/troubleshoot/windows-server/networking/guest-access-in-smb2-is-disabled-by-default

    Guest access in SMB2 disabled by default in Windows

    Configured registry value:

    [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\LanmanWorkstation\Parameters] "AllowInsecureGuestAuth"=dword:1

    PS: we also enabled smb1

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