DNS not working

[Guest]

This is a weird one...

My laptop is part of a domain (2003) with winXP PRO. Everything works fine
while connected to the LAN. If the laptop is taken to a remote location (not
connected to our corporate LAN) the laptop can not browse the internet. Here
are some notes:

1. The laptop is a DHCP client
2. The laptop obtains a valid IP, subnet, Gateway, and DNS servers.
3. The laptop can successfully ping the gateway and DNS servers.
4. There are no firewalls or proxies involved in this network.

There are other computers on the remote network that CAN browse the internet
SO, I know the problem is just with this laptop. The remote network is the
users' home. I can browse the internet using IP address but not with
hostnames. This is why I am stating a DNS issue, but I cant seem to figure it
out. I have checked all GPO (we have the default ones) and i configured DNS
settings to be applied in this GPO but i also tried removing those
configurations and still getting the problem

I have tried:
ipconfig /flushdns
right clicking the NIC and selecting "repair".
rebooting
logging on as admin

All above with negative results.

Any help is appreciated.

Thanks
--Dan

 

[Chuck]

This is a weird one...

My laptop is part of a domain (2003) with winXP PRO. Everything works fine
while connected to the LAN. If the laptop is taken to a remote location (not
connected to our corporate LAN) the laptop can not browse the internet. Here
are some notes:

1. The laptop is a DHCP client
2. The laptop obtains a valid IP, subnet, Gateway, and DNS servers.
3. The laptop can successfully ping the gateway and DNS servers.
4. There are no firewalls or proxies involved in this network.

There are other computers on the remote network that CAN browse the internet
SO, I know the problem is just with this laptop. The remote network is the
users' home. I can browse the internet using IP address but not with
hostnames. This is why I am stating a DNS issue, but I cant seem to figure it
out. I have checked all GPO (we have the default ones) and i configured DNS
settings to be applied in this GPO but i also tried removing those
configurations and still getting the problem

I have tried:
ipconfig /flushdns
right clicking the NIC and selecting "repair".
rebooting
logging on as admin

All above with negative results.

Any help is appreciated.

Thanks
--Dan

Dan,

What error are you seeing when it can not browse the internet? Can it not
browse by ip address, or just by name?

Try looking up a couple web site addresses:
All Net Tools: http://216.92.207.177/toolbox
DNS Stuff: http://69.2.200.183/

Could this be an MTU problem? Check your MTU settings.
http://www.annoyances.org/exec/show/article04-107
http://support.microsoft.com/?id=314825
http://support.microsoft.com/?id=319661
http://www.allensmith.net/Windows/ICS/xpICSmtu.htm

If no help yet, post 3 "ipconfig /all".
- The laptop when it can browse.
- The laptop when it can't browse.
- A working computer where the laptop can't browse.
1) Start - Run - "cmd".
2) Type "ipconfig /all >c:\ipconfig.txt" into the command window.
3) Open Notepad, make sure that Format - Word Wrap is NOT checked!.
4) Open file c:\ipconfig.txt from Notepad.
5) Copy and paste entire contents of the file into your next post.

 

[Guest]

Thank you for your quick reply chuck.

I get the error "page cannot be displayed" when trying to browse from the
problem laptop. other users on that same network are able to browse. I can
browse using the IP addresses for sites However most of the pages are not
fully displayed. (ie: yahoo.com has broken links for all the images.) I do
not believe this is a MTU problem. The location where the laptop can not
browse is at the users' home where his personal computers are able to browse
the internet. There is not a complex network set up there.. just a linksys
router.

The links you provided were pretty cool. Definitely worth noting for future
troubleshooting.

The posts for the ipconfig output will be provided shortly because i am not
currently at the location were the user can't connect. I can tell you
everything there looks normal. I compared the ipconfig /all output on a
computer that works there and this computer that didnt work. the ONLY thing
different was of course the IP (x.x.x.100 vs x.x.x.101) and the Node type
(working - hybrid and non-working - unknown). The DNS addresses were
identical and were pingable from both machines.

Thanks again for your help..

Dan

 

[Guest]

I have the same problem (or at least a similar problem).

The issue is a computer that is part of a Win2k3 domain, (again nothing
funky with the GPOs) when it is off-site on another dhcp server (a d-link
router off of a time-warner broadband connection).

ipconfig /all yields all the correct information (ip, subnet, gateway, dns
server) yet when a nslookup is issued it responds with dns server timed out
and is referencing the domain controller not the dns server used in the dhcp
scope.

after manually adding the dns server (that is pushed through as part of the
dhcp scope) to the IP configuration, it still looks for the domain controller
not the dns server in the ip configuration.

rebooted, etc... to no avail.

the client is WinXP SP2 Professional, any help would be greatly appreciated.