KMS Server 2008 and Windows 7 Activation

Hello Experts,
I have a Windows 2008 R2 64bit server running as my KMS server with a Windows 2008 R2 KMS key(Volume_KMS_R2_B channel).
It has been successfully activated since June 15 this year. It has been working fine up until a few days ago.
Now the client workstations cannot be activated see attached image with error.
Has Microsoft released some updates that may need to get this functioning again?

Windows-7-activation-error.PNG
KMS-licensing-server-info.PNG
MyTecAsked:
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MyTecConnect With a Mentor Author Commented:
After further investigation on the server side from the event viewer for actual KMS events. I determined that there appears to be various workstations with duplicate CMID's as I had multiple event 12290.
The image built using was syspreped using sysyprep /generalize and deployed with ghost this should resolve this?
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jimmyray7Commented:
How many servers are using the KMS key?  You need at least 5 servers to use KMS, otherwise use MAK.
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MyTecAuthor Commented:
I am currently just using 1 server for KMS activation.
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jimmyray7Commented:
How many servers are activating through KMS though?
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MyTecAuthor Commented:
this call can be closed I verified this has now been resolved by myself. thx
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MyTecAuthor Commented:
I have resolved this on my own.
EE moderators please close this.
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