DNS problems on windows XP

February 13, 2011 at 07:35:58
Specs: Windows xp
Hi, wondering if anyone can help.
Last week i installed a new cisco router for a cable connection (using a splitter).
I have up to 4 devices connecting wirelessly to it and 3 of them are working fine. That includes a win xp desktop pc.
My laptop however is giving me grief: at the start it would connect to the router but not the internet. Then i saw skype was working but i could not load any web pages. Finally narrowed it down to dns issues.
I flushed dns and that worked for a while until i switched off the machine - when i restarted the next day, i had the same Problem. Then i took the dns values from my network config and entered them manually to the wireless properties on my machine. Again, that worked fine till the next restart. I also assigned a static ip to my laptop, no change.
I can ping IPs, but not names.
I should also mention that everything works ok when i use an ethernet cable.
I've disabled the windows firewall and only have AVG installed - when i temporarily disable AVG, it makes no difference.
I have also run a few scans, but found no virus/problems.

Now when i use nslookup, i get the following:
DNS request timed out. Timeout was 2 seconds...

I've been at this for the last 4 days, trying any possible solution i can find or think of.
Any ideas, me and my sanity will be eternally grateful!

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February 13, 2011 at 19:05:12
You have copied the settings from the ethernet card (when it was connected) exactly to the wireless card, both for IPv4 and IPv6?

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February 14, 2011 at 14:51:09
Thank you very much for the quick reply.
I think you're right, I installed IPv6 Protocol and so far so good!

FYI, I had an "extended error" when trying to install it, so I ran the following command to repair the security database:
esentutl /p %windir%\security\Database\secedit.sdb
(as the nice people in http://www.eggheadcafe.com/software... recommended)
Just in case someone else has the same problem...

Thanks again for your help and immediate reply - you just made top of my xmas list! :)

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February 14, 2011 at 15:20:55
Cool - I hope you have a long memory! ;)

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