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Windows 7: error code 105 :dns server is not looking up

31 Aug 2012   #1

win 7
error code 105 :dns server is not looking up

Iam facing occasional net connectivity problems even though the internet connection is available ( which i have verified through ubuntu 11.1).
My system configs are
Mobo :asus p8p67 pro
Operating sytem :Windows 7 home premium 64 bit
Lan Card :Intel(R) 82579v Gigabit network connection.
Modem :Teracom ADSL broadband modem with wire
Memmory : 8GB transcend
Browser : Google crome, mozilla, IE, opera

I am getting the error code 105 ( not always) which says DNS server is not looking up. The connectivity will be restored automatically after some time.
I have tried all available browsers but in vain. But the modem is indicating a connection which i have further verified by testing in ubuntu .
Is it a win 7 centric problem ?( it is not a Lan card problem as it is working in ubuntu, sony internet TV)
Any suggestions ?
Thanks in advance

My System SpecsSystem Spec

31 Aug 2012   #2

Windows 7 Ultimate x64

What are you using for DNS settings?
Tried a public DNS? like and (Google Public DNS)
Have you flushed your DNS cache?
Start > All Programs > Accessories > Command Prompt. Right click on it and 'Run as Administrator'. Type the following : ipconfig /flushdns and hit enter.
Have you tried resetting your modem?
My System SpecsSystem Spec
31 Aug 2012   #3
x BlueRobot


Start > Control Panel > Network Sharing Centre (Small Icons View) > Change Adapter Settings > Right-Click your connection > Properties > Double-Click TCP/IPv4 Properties

DNS settings can be changed here.

Hope this helps,

My System SpecsSystem Spec

31 Aug 2012   #4

win 7

Thanks for the replies.
I will try it.
My System SpecsSystem Spec
05 Sep 2012   #5

win 7

Tried the suggestions. It didn't worked at least for my system.
I uninstalled the corrupted adobe flash player/shock wave player( it used to crash frequently in chrome but i dont know whether it is browser specific.) and since then the problem hasn't occurred(?).
My System SpecsSystem Spec

 error code 105 :dns server is not looking up

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