Dear All,
I am managing a Windows 2008 R2 active directory domain having one corporate office Site and 5 branch Sites. We are in the process of upgrading our active directory to Windows 2012. I have 2 DCs in corp office and one DC each in branch offices, so making
7 DCs in total. I have successfully demoted one DC in corp office and 2 DCs in branch offices and deployed Windows 2012 DCs. I have 3 Windows 2012 DCs and reaming 4 Windows 2008 R2 DCs. I am facing a problem in one of the branch offices while migrating to
Windows 2012. I have deployed Windows 2012 server there but I cannot access the Windows 2012 DC in the corp office using\\servername. Username and password screen is being displayed while accessing this DC. I have recreated the Windows 2012 server in the branch 3 times but still facing the same issue. I noticed this while promoting this 2012
server to DC and I got access denied error. Interestingly this server can access 6 other DCs except the first windows 2012 DC in corp office. I doubt 2 things. First something related to IPv6 as I cannot see IPv6 record for the corp Windows 2012 DC in DNS.
Secondly there is no windows DHCP server in the branch offices but we have cisco DHCP server. So initially this windows 2012 server is being IP address assigned by cisco DHCP server. Please guide me how to fix this issue or we have some tool to troubleshoot
this. One thing to add I tried to access with IP address of the corp windows 2012 DC but still getting the access denied error.
Thanks
Rajesh