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On my windows server 2008 R2 box I have two network adapters.

Adapter 1: static ip of 192.168.10.12 subnet mask of 255.255.255.0 DNS server at 192.168.10.10

Adapter 2: gets IP address from DHCP

I can log into this box with active directory accounts without issue. However, I cannot setup any services to run as active directory accounts. Windows says the account credentials are incorrect. Now, when I disable Adapter 2, everything works fine.

Update: When I open the "select user, computer, or group" dialog and then click "Locations" this is what I see.

Adapter 2 off

1) machine name
2) Entire directory
    domain.net

Adapter 2 on

1) machine name

What is it about Adapter 2 that is causing this issue?

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Is the 2nd NIC on the same subnet as the first? Which subnet has access to AD? How many DCs, what subnets, AD Sites? Is 192.168.10.10 an AD DNS server? – Chris S♦ Dec 14 '10 at 20:31
Is the 2nd NIC on the same subnet as the first? No, its on subnet 255.255.252.0. Which subnet has access to AD? 255.255.255.0. How many DCs, what subnets, AD Sites? 1 DC, not sure, not sure. Is 192.168.10.10 an AD DNS server? yes. – ElephantMoss Dec 14 '10 at 20:39
do a ipconfig on adapter 2 whats the dns settings? – tony roth Dec 15 '10 at 15:12
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1 Answer

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Perhaps you need to change the preferred order of the connections? If you go to:

Network and Sharing Center -> Change Adapter Settings -> Advanced Menu -> Advanced Settings

you will have an option to re-order the connections, make sure that Adapter 1 is first in the list.

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Thanks for the tip, but after trying that, it did not fix my problem. – ElephantMoss Dec 15 '10 at 14:59
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