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With fresh installation of Windows 2012 and Windows 8, you can’t access old SMB share or CIFS share correct.

The solution is following.

· To enable SMBv1 on the SMB client, run the following commands:

· sc.exe config lanmanworkstation depend= bowser/mrxsmb10/mrxsmb20/nsi

· sc.exe config mrxsmb10 start= auto

· To enable SMBv2 and SMBv3 on the SMB client, run the following commands:

· sc.exe config lanmanworkstation depend= bowser/mrxsmb10/mrxsmb20/nsi

· sc.exe config mrxsmb20 start= auto

 

 

 

Run following Powershell command to disable new security negotiate on SMB 3 which some third party doesn’t support. 

Be aware once you disable this security negotiate, you need to disable all Windows 8 and Windows 2012 in your environment so they can talk to each other.

 

Set-SmbClientConfiguration -RequireSecuritySignature $false

Or

Set-ItemProperty -Path “HKLM:\SYSTEM\CurrentControlSet\Services\LanmanWorkstation\Parameters” RequireSecureNegotiate -Value 0 -Force

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