When you run the Slmgr.vbs script on a Key Management Server (KMS) computer, you verify that the number of client computers does not increase when you add new Windows-based client computers to the network. Additionally, you may see the following event in the Key Management Service event log for each new Windows-based client computer that you add to the network: 

When you run the Slmgr.vbs script together with the –dli argument, the client computer count information does not increase as expected. In the following event that is logged in the Key Management Service event log, the current count remains the same

Cause:

This issue can occur when Windows-based client computers that you add to the network have identical KMS client machine IDs (CMIDs). The current count number increases on a KMS computer when the client computers have different CMIDs. Two or more computers can have the same CMIDs in the either of the following scenarios:  The custom Windows image that you use to install the client computer is generated even though you do not run the System Preparation tool (Sysprep.exe) together with the /generalize option.

The custom Windows image is generated together with the /generalize option. However, you specify the <SkipRearm> setting in the Unattended.xml file.

To verify that client computers have identical CMIDs, follow these steps:

• On one of the Windows-based client computers, click Start, point to Programs, point to Accessories, right-click Command Prompt and then click Run as Administrator. If you are prompted for an administrator password or for a confirmation, type the password, or click Allow.

•  At the command prompt, type the following command, and then press ENTER:  cscript c:\windows\system32\slmgr.vbs –dli

•  Examine the following results, and note the CMID:

•  Repeat steps 1 through 4 on a second Windows-based client computer. Verify that the CMID of the second client computer is identical to the CMID of first computer. 

Resolution:

We recommend that you rebuild the base image that is used to deploy the affected computers as soon as you determine whether they have identical CMIDs.

Workaround:

The workaround is valid only if the /generalize option was used in the image that was used to install Windows-based clients. This option is required when you deploy multiple images. To determine whether the /generalize option was used in the image, follow these steps:

• On one of the affected computers click Start, and then type C:\Windows\System32\sysprep\Panther\setupact.log.

• Examine the "SYSPRP ParseCommands:Found" lines as shown in the following sample log file:

Info [0x0f004e] SYSPRP Initialized SysPrep log at C:\Windows\System32\sysprep\Panther

Info [0x0f0054] SYSPRP ValidateUser:User has required privileges to sysprep machine

Info [0x0f0056] SYSPRP ValidateVersion:OS version is okay

Info [0x0f005c] SYSPRP ScreenSaver:Successfully disabled screen saver for sysprep

Info [0x0f007e] SYSPRP FCreateTagFile:Tag file C:\Windows\System32\sysprep\Sysprep_succeeded.tag does not already exist, no need to delete anything

Info [0x0f005f] SYSPRP ParseCommands:Found supported command line option  'UNATTEND'

Info [0x0f005f] SYSPRP ParseCommands:Found supported command line option   'OOBE'

Info [0x0f005f] SYSPRP ParseCommands:Found supported command line option   'SHUTDOWN'

Info [0x0f005f] SYSPRP ParseCommands:Found supported command line option   'GENERALIZE'

• If the /generalize option is present, confirm that this option was used on the computer that created the base image.

• If the /generalize option was used and you have computers that have identical CMIDs, follow these steps to rearm the affected computers and rebuild the base image. Make sure that you do not use the <SkipRearm> setting is not used: 

Point 1: On one of the Windows-base client computers, click Start, point to Programs, point to.

Point 2: Accessories, right-click Command Prompt, and then click Run as Administrator.

If you are prompted for an administrator password or for confirmation, type the password, or click Allow.

Point 3: At the command prompt, type the following command, and then press ENTER: cscript c:\windows\system32\slmgr.vbs –rearm

Restart the computer.

If the base image was not generated by using Sysprep with the /generalize option, you must rebuild the base image, and then reinstall Windows on the clients. If you use an Unattended.xml file when you rebuild the base image, make sure that the <SkipRearm> setting is not used.

For more information about the <SkipRearm> setting, see the Windows Automated Installation Kit (Windows AIK) documentation.

Happy Learning!!!

Thanks & Regards,
Haresh Hirani
Email: [email protected]
Follow me: Twitter @hirravi1
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