WSUS on Windows 2012 R2 is not seeing all machines

I have a single WSUS server (Windows 2012 R2) built new in my domain.  I can successfully pull (via GPO) over 1900 machines.  I am sure that I'm only missing a few machines (which are 2K8 terminal servers).  All other PCs and laptops and servers are successfully communicating with WSUS.

My issue is that I have roughly 10 Terminal Servers of 35 Terminal Servers (same OU, subnet and GPO) are not communicating.  I have confirmed in the registry that the servers are looking at the correct location for WSUS (port 8530).  I have also attempted on one of the servers /resetauthentication /detect and I still have not seen it in WSUS after 2 hours.

Any thoughts?
SteveNorris73Asked:
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DonNetwork AdministratorCommented:
Were these machines imaged??
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SteveNorris73Author Commented:
Roughly 1/2 of the terminal servers were imaged with a template.  Some of them are showing and some are not.  4 machines were actually done at the same time and only 1 of the 4 showed up in WSUS while the others have not.
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DonNetwork AdministratorCommented:
Run the duplicate sid script on them and you should be ok.
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SteveNorris73Author Commented:
I'm attempting it on one of my test servers that are not being seen to determine results.  I will report back soon.
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SteveNorris73Author Commented:
After I ran the batch file, the server appeared immediately when I refreshed the Unassigned Computers group in WSUS
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DonNetwork AdministratorCommented:
Nice!
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