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Accepted
leeand00
Asked: 2016-04-15 06:32:16 +0800 CST

How do you check what version of Server Message Block client a workstation is using on Windows?

  • 772

Sometimes over slow connections we switch to an older version of the protocol. I'd like to be able to check and see which version is being used, I only know how to set the version ala:

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

How does one check the version of the protocol being used without using Powershell?

windows-command-prompt server-message-block

2 Answers

  1. Best Answer

    If you have Windows 8.1 or 2012, you can use the PowerShell cmdlet Get-SmbConnection for that.

    To interpret the answer (copied and pasted from here):

    • SMB 1 - Windows 2000
    • SMB 2 - Windows Server 2008 and WIndows Vista SP1
    • SMB 2.1 - Windows Server 2008 R2 and Windows 7
    • SMB 3.0 - Windows Server 2012 and Windows 8

    Sample output:

    ServerName   ShareName   UserName      Credential                 Dialect   NumOpens
----------   ---------   --------      ----------                 -------   --------
SERVER2      f$          DOMAIN\USER   otherdomain\otheruser...   2.02      1
SERVER1      backups     DOMAIN\USER   DOMAIN.LOCAL\USER          3.02      2
SERVER3      users       DOMAIN\USER   DOMAIN.LOCAL\USER          2.02      1

    If you don't, perhaps this related question will help:

    • 8

  2. You can check the status of the SMB 1/2 services, as seen here:

    sc query mrxsmb10
sc query mrxsmb20

    ? In PowerShell, you will need to use sc.exe instead of sc!

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