DNS problem

[wheelspk]

[FONT=Segoe UI]Hello,[/FONT]
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[FONT=Segoe UI]I have problem with one of my pc's, a few days ago I started to notice that I couldn’t open many sites on all browsers, then I connected my wife’s laptop with a lan cable and every thing was working. connected both pc's to the same modem and opened a common website and the result was same, my pc didnt open the websites only same sites where as the laptop was fine, reading on the web I found people telling different ways to fix the issue and I think I have tried all:[/FONT]
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[FONT=Segoe UI]I have flushed the DNS Cache, as well as restarted it.[/FONT]
[FONT=Segoe UI]I have also tried uninstalling the Wireless Networking Card[/FONT]
[FONT=Segoe UI]Making sure that auto DNS is enabled on both modem and pc.[/FONT]
[FONT=Segoe UI]I have even changed modems.[/FONT]
[FONT=Segoe UI]I have tried to connect the pc on my friends network.[/FONT]
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[FONT=Segoe UI]The only way to use the internet was assigning 8.8.8.8 and 8.8.4.4 Dns in my modem and every thing works fine but my ping goes high; when I connect to auto DNS the problem comes back.[/FONT]
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[FONT=Segoe UI]After all the things I tried I reinstalled a New windows 7 praying things would be solved but to my sadness nothing was done, I reinstalled a new windows 2 times but nothing. I even deleted the anti virus to see it helped, that didn’t help[/FONT]
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[FONT=Segoe UI]I dont understand why will my pc not take AUTO DNS??? [/FONT]
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[FONT=Segoe UI]PLEASE help me I really dont know what to do here.[/FONT]

 

[MrBlkfx1]

Networking has never been my strong point. However, maybe jobeard will have some pointers for you.

 

[Jad Chaar]

Google Public DNS (8.8.8.8, etc) is better than auto, so you are fine. But like BLK said, Jobeard may be able to elaborate or problem solve.

 

[DelJo63]

On vacation, but saw your plight....
Basically reset etc\hosts to contain exactly and only

127.0.0.1. Localhost

Perms will be an issue, others will need to guide u further......

 

[TheHawk]

Hey wheelspk. For clarification,
Do you have a wireless router in your network?
Is your pc also a laptop and if so, do you normally connect wirelessly?
When you say you connected to your modem, did you mean a router using an Ethernet cable?
When you reinstalled Win7, was it a clean reinstall (with a format), or just a regular reinstall?

 

[St1ckM4n]

Google Public DNS (8.8.8.8, etc) is better than auto, so you are fine

Semi off-topic: This advice isn't 100% correct, and shouldn't be given out in every instance of this problem. Not saying you do that.. but FYI.

 

[Jad Chaar]

Semi off-topic: This advice isn't 100% correct, and shouldn't be given out in every instance of this problem. Not saying you do that.. but FYI.

Right, but I find that is is GENERALLY better to use .

 

[rsk2032]

Dear you did a lot for your computer which was not necessary the only thing you did is that change your mtu size in router from ex-1500 to 1490.this definitely solve your problem. if not reply