Cant flush DNS on a laptop running XP pro 1

[Bendi71]

Hi,

Here is my problem. I have a 2k3 R2 enterprise server running as a DC, DNS and DHCP. I have about 6 users with laptops that work fine in the office and resolve DNS via 10.2.0.3 (they get it via DHCP)which is the server I mentioned above. Problem is that when they take those laptops off site, eg. home and connect to their WIFI or ethernet they cant resolve any DNS. For some reason they get the IP from whatever they connect to but the DNS always points to 10.2.0.3, which is the server in the office. Even if I assign a static IP for their home eg. 192.168.1.100 where gateway and DNS is 192.168.1.1 and run ipconfig /all, DNS shows as 10.2.0.3. ipconfig /flushdns doesnt do anything. The only way to get DNS to resolve is to connect VPN. By the way all users are using XP pro Sp3 or Sp2. Cant figure out what is hardcoding the DNS. Thanks for any help....

 

[BadBigBen]

How do I use the Windows XP alternate TCP/IP configuration?

http://windowsitpro.com/article/art...windows-xp-alternate-tcpip-configuration.html

How to Setup a Static IP Address (Win XP)

http://www.ehow.com/how_4393725_static-ip-address-win-xp.html

Maybe the above will give you some insight to solving the issue, specially the first link...

Ben
"If it works don't fix it! If it doesn't use a sledgehammer..."
How to ask a question, when posting them to a professional forum.
Only ask questions with yes/no answers if you want "yes" or "no"

 

[Bendi71]

Thanks for the reply but I have tried that. Even if I assign a static IP and DNS eg. (IP 192.168.1.100) and (DNS 192.168.1.1) it still looks for 10.2.0.3. Tried ipconfig /flushdns then ipconfig/registerdns and it still shows 10.2.0.3 after running ipconfig /all.

Using alternate IP config will not work because people not only work at home but different places and besides I still have the same problem with DNS, no matter what I put it always looks for 10.2.0.3

 

[Freestone]

Have you tried a ipconfig /release yet? The flushdns and registerdns parameters don't seem to be the correct ones to apply in your case.

http://www.microsoft.com/resources/.../xp/all/proddocs/en-us/ipconfig.mspx?mfr=true

 

[Freestone]

Or perhaps try restting TCP/IP:

http://support.microsoft.com/kb/299357

 

[Bendi71]

Problem is not the connectivity. You can browse internet by using IP's, just cant resolve them. I did try fixing the TCP/IP stack before and nothing. No matter where, WIFI or ethernet, static or dynamic IP, DNS always shows up as 10.2.0.3.

 

[Freestone]

I realize connectivity isn't the issue. The /release SHOULD release your DNS server configuration too, but then again, your static configuration should too. A bizarre problem you have there...

Perhaps a Group Policy is overriding?

http://support.microsoft.com/kb/294785

 

[Bendi71]

ipconfig /release doesnt do anything, it would be the first thing to try and obviously I tried that.

Group Policy I didnt try. Thanks for the idea, I will try it now.

 

[Bendi71]

Thanks Freestone, GPO was the problem. I know I didnt set it, maybe a person before me did. Great answer.

 

[Freestone]

I am glad that was the answer. I learned something new too!

 

[Bendi71]

Under this key in GPO Computer Configuration/Administrative Templates/Network/DNS Client the DNS server 10.2.0.3 was listed, it would have worked if someone listed a public DNS server as well.

 

[Bendi71]

Thanks again....