Domian Controller Win Server 2008 r2

I have set up a Domain Controller in a Windows 2008 r2 environment. I used the defaults and setup the DNS.  So far I have the server acting as the DHCP and the "Client" computers are connecting through the server (I think).  I have a router in the mix and the server is connected to it.    Here are some numbers:

Router
192.168.2.1
DHCP is disabled

Server:
Lan 1

IP Address 192.168.2.2
Subnet 255.255.255.0
Default Gateway 192.168.2.1

DNS 192.168.2.2
ALT  192.168.2.1

LAN 2
IP Address 192.168.2.3
Subnet 255.255.255.0
Default Gateway 192.168.2.1

DNS 192.168.2.2
ALT  192.168.2.1

The DHCP range is 192.168.2.101 to 200

I can look at the leases in the Server and all of my computers and printers are listed.

I have added the computers in question to the Active Directory. (As well as the user)


Anybody have any ideas
Pat ClancyCEOAsked:
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Adam BrownSr Solutions ArchitectCommented:
Well, it's generally recommended that a Domain Controller only have 1 NIC...but I'm not sure if I'm reading your post correctly. Is there an issue you're running into with this setup?
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Darius GhassemCommented:
You need to disable all network cards except for one if you are running this server as a DC. DCs shouldn't be multihomed servers.

Second you need to remove ALT  192.168.2.1 this is not a internal DNS server for your domain. When you are on a domain your DCs, member servers, and clients should only point to internal DNS servers which are usually DCs only.

After doing the above go to command prompt ipconfig /flushdns, ipconfig /registerdns, and dcdiag /fix
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BawerCommented:
just a question, why you have two nics in the domain controller, although a DC can have two NICs if the ranges are different however i see both the LAN IPs are from similar subnet,
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Pat ClancyCEOAuthor Commented:
I did not know that I could only have one NIC I have disabled the second one. I am working on solution 2 at the moment.

I'll let you all know what happens and thank you for you quick responses.

Thanks
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Pat ClancyCEOAuthor Commented:
I also went into the properties of the computer that I wanted to join the domain and added the Address to the DNS port. then was able to join the domain straight way.  Thank you for your help.
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