Probleme new certificat SHA256

Hi evryone,
I had very strange problem,
After Suyces a Migration PKI to SHA2
13.pngand deploy new certificat in GPO and 802.1x
I had this problem authentication with workstation with Win7, after deployed a new certifcat sha256 and reboot Workstations i can't athentificat and the worksattions we have a IP adress 169.
But in windows 10 and 8 the workstation worked normally with new certificat
Firstly i think the origin of problem is :  KB3033929
Thank you for advance.
Alain VOUCHEAsked:
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Dave BaldwinConnect With a Mentor Fixer of ProblemsCommented:
That doesn't make any sense so maybe I'm missing something.  Do your workstations have to 'authenticate' to the DHCP server to get an IP address?  This article doesn't make a lot of sense to me: https://support.microsoft.com/en-us/kb/3033929
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Dave BaldwinFixer of ProblemsCommented:
IP address 169.x.x.x means that you do not have a network connection.  I don't think it has anything to do with your certificate.  With IP address 169.x.x.x that means the connection is not getting far enough to even check the certificate.
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Alain VOUCHEAuthor Commented:
Thank you Dave for your answer,
 Yes, i Know IP address 169 is automaticall adress APIPA
but the workstations with win10 and win 8 worked normally, so no problem in network
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Dave BaldwinFixer of ProblemsCommented:
Sorry but IP address 169 by definition means there is a problem in the network, at least for that workstation.  As long as it shows IP address 169, it will not be able to connect to other computers on the local network because it won't be on the same network segment.
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Alain VOUCHEAuthor Commented:
Yes, i am totally agree with about this,
But why if i roll back  and i delete new certificat in this workstation i don't have a problem authentifcation and we had address ip 172
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Alain VOUCHEAuthor Commented:
and all workstation with win 10 and 8 worked normally with new certificat
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