DNS stops working in Windows 7
Hi, I have a problem i am experiencing on my laptop since i moved from Win Vista to Win7. Sometimes the internet connection stops working. I know i am properly connected to network since i can browse shared folders on other computers and also i can access the router. However DNS is not translating anything sometimes. And its not a problem of the router, because other computers running vista/XP works fine. I tried ipconfig /release * and /renew *. It helps but only for a couple of minutes. After a while its stops translating addresses into IPs. Certain services however still works like skype for example. Only solution to solve once this happens is to reboot the system. This happens if i am connected via Wi-Fi. Especialy after waking up the laptop from sleep mode. But even if i disconnect from wifi and connect via cable it still doesnt works. /release and /renew helps, but only for a 2 minutes or something like that. This happend undependably on router i am connected too. Happens at work, at home, at airport. Onlything what helps is to reboot the laptop. Any suggestion how to fix this problem with DNS without restarting laptop everytime ?
July 9th, 2010 6:48pm

This issue occurs if the antivirus or firewall block the DNS related packs or ports. Please temporary disable or uninstall them and check the result. If it does not help, please troubleshoot in Clean Boot Mode. Perform a clean startup to determine whether background programs are interfering with your game or programPlease remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.
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July 13th, 2010 11:22am

Just a wild guess: Do you happen to have any third party VPN clients installed? I have experienced DNS problems due to bugs in VPN software on several occasions.
July 13th, 2010 1:25pm

Using Microsoft Security Essentials as antivirus and win7 inbuilt FW. Even disabling them doesnt solve the problem.
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July 29th, 2010 3:22pm

I am using Hamachi but its offline most of the time, ill try to uninstall it or disable the hamachi network adapter while i am not using it
July 29th, 2010 3:25pm

Hi, there is a relevant blog post about Hamachi interfering with DNS Hamachi Bug – DNS problem in windows .
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December 9th, 2010 7:18pm

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