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Can't authenticate properly on domain when connected to 2 physical wired networks

Posted on 2011-03-07
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Last Modified: 2012-05-11
Hi Experts,

I have a domain workstation that is connected to a Windows Active Directory network (172.x.x.x) and another local network (192.x.x.x).

In order to successfully authenticate on the domain, I'm always forced to disable/disconnect the 192 network connection before I am able to.

I tried the following measures, but met with no success.

1.  Using Network Connection properties, I manually set the metric values of the 172 network to 1 and the 192 network to 2.

2.  I tried setting up a static route for the possible subnets where domain controllers are located to go through the 172 network.

3.  I tried deleting the default route for 192 network.

How can I configure the networks so that they both stay active and I'm able to use the domain services normally?

One example of malfunction is that when trying to add a domain user using the "control userpasswords2" applet, I get an error that a trust relationship with the domain failed.  It seems that any non-cached domain credentials cannot be verified.

Thanks in advance!
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Question by:waqqas31
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6 Comments
 
LVL 5

Expert Comment

by:ydsonline
ID: 35065365
Try setting your "Automatic metric" of your network adaptor that is connected to your active directory network to 1 (untick the box next to automatic metric). The automatic metric setting is located under TCP/IP Properties of your network Adapter > Advanced.. button. This will force all requests to go through that adapter first before it will look at the other adapter.
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LVL 5

Expert Comment

by:ydsonline
ID: 35065520
My apologies, ignore my post. I read your question too quickly.
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LVL 16

Accepted Solution

by:
speshalyst earned 250 total points
ID: 35071603
What is the Binding Order of these 2 Network LInks..

Open "Network Connection" > Advanced>Acvanced Settings
Look under Adapters and Bindings..
Make sure  you 172.xxx is the first in the binding order. .

Hope this helps
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Author Comment

by:waqqas31
ID: 35074930
@speshalyst:

You're a genius, it worked!

Thanks a bunch!
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Author Closing Comment

by:waqqas31
ID: 35074943
Solution couldn't have been more precise!
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LVL 16

Expert Comment

by:speshalyst
ID: 35083644
Glab to be of help !! :)
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