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Windows Server Ent. R2 in Windows 2012 Active Directory Domain

have a windows 2008 ent r2 server
have a windows 2012 std active directory domain controller
application that runs on the windows 2008 server needs to communicate with the AD
have joined the server to domain but having issues reading global catalog
is there a way to have the windows 2012 AD schema communicate with windows 2008 servers?
all help is greatly appreciated
delebute
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David Elebute
Asked:
David Elebute
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1 Solution
 
jrhelgesonCommented:
It should communicate without any problems.  What kind of issues are you having?  Also, more info about the environment: How many domain controllers and what type?
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David ElebuteSystems ConsultantAuthor Commented:
thx jrhelgeson
single windows 2012 domain controller
application is websense
no other domain controller
when trying to add windows 2008 r2 as another domain controller I get schema errors about compatibility
delebute
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jrhelgesonCommented:
Oh, what is your forest/domain functionality level set to? You'll find this in Active Directory Users & Computers.
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David ElebuteSystems ConsultantAuthor Commented:
windows 2012 is the domain functional and Forest Functional level
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JaihuntCommented:
You cannot add Windows 2008 Server in windows 2012 domain functional and Forest Functional level. If you want to add 2008 server you need downgrade the functional level first.

http://technet.microsoft.com/library/understanding-active-directory-functional-levels%28v=WS.10%29.aspx

Whats the issue your facing when websense contact DC.? any errors ?
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David ElebuteSystems ConsultantAuthor Commented:
thx  Jaihunt
I actually found an article about the domain function levels and downgraded the AD to Windows 2008 functionality
the websense error was basic, the logon agent and DC agent on the Windows 2008 R2 server could not communicate with the AD controller
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David ElebuteSystems ConsultantAuthor Commented:
I've requested that this question be closed as follows:

Accepted answer: 500 points for Jaihunt's comment #a39697902
Assisted answer: 0 points for delebute's comment #a39697929

for the following reason:

the downgrade solution was correct
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David ElebuteSystems ConsultantAuthor Commented:
we were able to downgrade the domain functional levels to the desired windows 2008 level
delebute
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