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are they in the same location? do they both have the correct IP settings including DNS and WINS, if you are using it. <br />
<br />
how about the second DC/GC, does it host DNS? Is your DNS AD Integrated? Is the DHCP Scope active / authorized and is it correct?<br />
<br />
Hope these suggestions help,<br />
<br />
<br />
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Yes same location, I had the IP settings and DNS verified by another TECH just to be sure I was correct. &nbsp;Yes the 2nd DC hosts DNS. &nbsp;<br />
How do I check if the DNS is AD Integrated?<br />
The DHCP is active and authorized both DC's<br />
<br />
Could the fact that I shut down the first DC 30 minutes before the users got in, have anything to do with it?
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The replication is working fine. &nbsp;Both have the same SOA and DNS records.<br />
They are both AD Integrated<br />
The 2nd DC is hosting the existing zone. &nbsp;I tested this by adding an new computer today to the domain.<br />
<br />
That's why this is so confusing. &nbsp;I'm not an expert by any means, but I've checked everything I can think of.<br />
<br />
If you think of anything else let me know.<br />
<br />
Thanks
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if you suddenly power down your DC with users logged in, when you restart the client machines what exactly happens
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I haven't tried that. &nbsp;Unfortunately, I won't be back at the office till 5/9. &nbsp;I can do it then.
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issues can also rise if you have ever had an old DC thats hasnt ben removed properly...
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I had a member serverthat happened to, but not a DC
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if your certain there was never another DC then cool :)
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I have 2 Windows 2003 DC/GC/DHCP servers. &nbsp;I'm in the process of building anew one to replace one of the old ones. &nbsp;When I shut down the 1st DC/GC/DHCP users can't logon to the domain via the 2nd DC/GC/DHCP. &nbsp;What could be wrong?<br />
<br />
Thanks J.R.
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I have 2 Windows 2003 DC/GC/DHCP servers.  I'm in the process of building anew one to replace one of the old ones.  When I shut down the 1st DC/GC/DHCP users can't logon to the domain via the 2nd DC/GC/DHCP.  What could be wrong?

Thanks J.R.

When 1 DC/GC 2003 server goes down, users can't logon the the domain with the 2nd DC/GC (500 points)

Windows 2000 is an operating system for use on both client and server computers. It is the successor to Windows NT 4.0, and is the last version of Microsoft Windows to display the "Windows NT" designation. Four editions of Windows 2000 were released (Professional, Server, Advanced Server, and Datacenter Server) that shared a core set of features, including many system utilities such as the Microsoft Management Console. All versions of the operating system support NTFS 3.0, Encrypting File System, as well as basic and dynamic disk storage. The Windows 2000 Server family includes support for Active Directory services, Distributed File System and fault-redundant storage volumes.