2012 Client GUID Duplication Issues - Cannot force new GUID!

[synwiz]

i have a number of clients all conflicting for status within the Admin Console because they have Duplicate GUID. The problem is that whatever method i try to resolve the issues results in the client still picking up the same duplicate GUID again & again

 

i have tried the following methods

 

• stop ccmexec service
• ccmsetup /uninstall
• ccmdelcert.exe
• del SMSCFG.INI
• del SMS Registry Key
• ccmclean.exe /ALL
• ccmsetup install.

 

also,

 

• stop ccmexec
• tranguid.exe /R
• start ccmexec

 

also,

• stop ccmexec
• ccmdelcert.exe
• del SMSCFG.ini
• start ccmexec

 

non of which work!!!! i have looked at countless sites for some answers, but nothing works. i cannot see the clients in the SCCM Admin Console, after their initial setup where the details are not assicated with the client. The client eventually disappears from the console.

 

[synwiz]

** Resolved **

Before i contacted CSS, i had one last bash at troubleshooting the
chain. What i didn't mention in the original query was that the
environment is purely Internet ONLY, and hence uses PKI Certificates. i
had created a generic certificate with the HTTPS FDQN
details of the MP & Site Server installed under the SAN criteria of
the certificates.

i then proceeded to roll this certificate out to all clients..... 66%
of the clients all reported in fine to the Admin Console and managed to
find a unique SMS GUID, 33% of the clients which prompted this query
suffered with using the same SMS GUID.

It was a simple case of recreating the certificates for the existing
clients including the client FDQN within the SAN also. i then followed
in most cases the process above of stopping the service, using TRANGUID /
R then restarting the service.

for the most part the clients collected a new SMS GUID and reported OK.