Clients in Windows network are SLOW to pull IP.

With one big exception office LAN has run nicely with an old Windows Server 2003 playing the role of domain controller, DHCP server, and DNS server. That one exception: client machines are SLOW to pull an IP from DHCP.

The slow IP acquisition is independent of the connection type to the network. Ethernet and wireless are both slow.
We introduced a new Windows Server 2012 domain controller in July. We were hoping that the new box would address the IP issue. No luck. (It's worth noting that the old Windows 2003 domain controller is still online for another week or two.)
The slow IP acquisition is giving us trouble with GPO assignments and login script execution.

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Casey WeaverManaged Services Windows Engineer IIICommented:
This sound like a switch issue. If Cisco do you have portfast enabled on the ports? It sounds like the switch is keeping the client disconnected for extended checks for loops.

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Ensure that there is only one DHCP server in the network.  Is the Windows Server 2012 running DHCP?  If not, can you switch the DHCP server from 2003 to 2012?

What happens if you connect a computer directly to the same switch the server is connected to?

Also, can you exclude the DHCP directory from the indexing service/antivirus scanning?


jdanaAuthor Commented:
Thanks guys, I'll try both suggestions.
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