cnc machine does not convert filenames to 8.3

I have a CNC machine that is attached to a Windows network and has a drive mapped for the interface to obtain instructions for its operation. I recently changed the server to Windows 2012 R2. Remapped the machine and the machine is attached to the new server. However, the machine has an interface that goes back to Windows NT 4.0. On the old server which was Windows 2003, the filenames would convert to 8.3 naming convention and load the file, read the instructions, etc. On the new server, Windows 2012 R2, the filenames do not convert. I have enabled the 8.3 names and rebooted the server. I did a fresh mapping of the folder and it is not creating the 8.3 names. I have contacted the software vendor and they told me it was a Windows issue and I can get no further support from them. Is there a way to get a Windows NT 4.0 interface to read or convert filenames to 8.3?
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geriatricgeekAsked:
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Adam LeinssServer SpecialistCommented:
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geriatricgeekAuthor Commented:
yes it was installed.
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Adam LeinssServer SpecialistCommented:
If you type "dir /x" from the PC from the command console, do you see the shortnames conversion there?
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geriatricgeekAuthor Commented:
nope. don't see the shortnames in the dir
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Adam LeinssServer SpecialistCommented:
If you run fsutil 8dot3name query, what is the output?
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geriatricgeekAuthor Commented:
the registry state is 0 (enable 8dot3 name creation on all volumes
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Adam LeinssServer SpecialistCommented:
I would try disabling SMBv2 and SMBv3 at the server level and see if the problem continues: http://support.microsoft.com/kb/2696547

If that works, that is only a temporary fix however as you do not want to leave those disabled.
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geriatricgeekAuthor Commented:
the problem continues. I got errors when disabling the SMB.
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Adam LeinssServer SpecialistCommented:
I'm out of ideas, maybe another expert can chime in on this one?
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geriatricgeekAuthor Commented:
It looks like there are no other experts on this subject.
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Windows Server 2012

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