Error Message I have never seen

I tried to change the IP Settings from the Control Panel/Network Sharing Center/Change Adapter Settings then Properties.

The computer was NOT connected to any network by Cable or WiFi.

I got the message attached,

Any idea what went wrong, and how to fix this?


George (Biggles1)
IP Settings control
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If there anything in 'advanced' that night be causing the error?
ITSysTechSenior Systems AdministratorCommented:
It appears that you are using the same address for your DNS as you are for your Gateway. Do you have another address for your DNS?
@ITSysTech:  There is no reason why the default gateway cannot also be the DNS server is there?
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ITSysTechSenior Systems AdministratorCommented:
Alan, I wanted to make sure his repeated address was intentional.

Do you have another interface on another gateway address (maybe the wireless device)?
Biggles1Author Commented:
Thanks Guys:  There is nothing behind the Advanced Tab.

The Laptop was connected to nothing.  Not even WiFi.

Why the preferred DNS Server and the Gateway are the same?  I've configured computers like this before.  It was explained to me that the Gateway just passes DNS requests to whatever DNS Server happens to be reachable.

One thing I have not tried to do is: ipconfig/release then ipconfig/renew.  I've seen it once before that an IP address can "survive" from one connection to the next.

I'll let you know.
Hi Biggles1,

There is nothing wrong with having the default gateway and DNS being the same - many routers do this, but regardless, you are getting the error even while disconnected, so that doesn't seem to be related.

After you have done the IPConfig /Release, please can you do an IPConfig /All to see what is in there at that point.

I can't see the /Renew doing anything without a connection (you will just keep an auto config address).

ITSysTechSenior Systems AdministratorCommented:
Make sure you change it to "obtain an IP automatically" before running the IPConfig /All .
Biggles1Author Commented:
I did a ipconfig/release, then ipconfig/renew (after I reconnected to my original network (ie the one I use all the time).  The ip address was reestablished from the DHCP Server.  Same result!
ITSysTechSenior Systems AdministratorCommented:
Could you check your other devices for static addresses (wireless cards or nic cards)?

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Hemil AquinoNetwork Security EngineerCommented:
It means, you have more than two network interfaces with defaults gateway.

To avoid confusion, go to each interface. remove the ip and default gateway, make sure both are blank.
Afterwards, select the connected network and assign the Ip with the default gateway and you should be ok
How many NIC cards are on that system, and does the other one have a static set in it? That's a scenario that would actually make sense.
Biggles1Author Commented:
You are right.  There is a WiFi and a RJ45.  There is no WiFi within range but when I looked into Properties of the WiFi, there was the same Default Gateway as the Wired BUT EVERYTHING ELSE (IP ADDRESSES) WERE BLANK!.  So I selected the option to change the IP settings and DELETED the Default Gateway from the WiFi properties.

Nothing doing.  The Default Gateway is still there.

In the end I just gave up and had no problems.
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