Windows 7 Forums
Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.

Windows 7: DNS issues - Server Not Found - Solution! (kind of)

12 Sep 2009   #1

Windows 7 RC Build 7100
DNS issues - Server Not Found - Solution! (kind of)

I have three computers on my home network, 2 with Windows 7 RC and one XP computer that I use as for file storage, all behind a Linksys Router, then connected to the internet via cable modem. I have been pulling my hair out with slow web browsing, and intermittent "Server Not Found". Firefox takes forever with "looking up" websites or "connecting to" websites, often resulting in "Server Not Found," and also hit or miss if I can "Try again" and have the website load correctly. This happened with all internet browsers that I tried. It has been so frustrating simply due to the inconsistency.

I have tried many different changes to both my computers and router, with no success. It seems that resetting the network adapter(which was included in most "remedies" on forums) would provide only temporary relief. I've also heard that Homegroup was causing problems, so I disabled those services as well, with no permanent fix. Connecting a computer directly to the cable modem alleviated these problems, which led me to believe it was a Windows 7 networking problem.

But the simple solution that worked for me was to simply change my "Home Network" to a "Work Network" for all Windows 7 computers. AMAZING! Internet is faster than ever with no lag in DNS lookup and no "Server Not Found" errors. I can still share files between computers on my network and things are as they should be!

This is a solution only in the fact that I can get my internet up and running and keep networking the same as always. Obviously, Windows 7 needs to fix Homegroup and the Home Network before the release. Maybe someone out here on the forums can get a Home Network running as it should!


My System SpecsSystem Spec
13 Sep 2009   #2

,Windows 7-64.7600.16385 Ultimate

I will give it a shot thanks
My System SpecsSystem Spec
13 Sep 2009   #3

,Windows 7-64.7600.16385 Ultimate

I had it working OK on Work Network But then I went to download a file with Utorrent & I couldn't
So I had to switch back to Home Network

I would say there must be a setting in your windows Firewall that is stopping your system from getting on the net
My System SpecsSystem Spec

13 Sep 2009   #4

Windows 7 RC Build 7100

The firewall is something that I worked extensively on. I don't think it is a firewall issue for two reasons.

1) It is sporadic. I can enter "" and get a server not found, refresh the page, then have it load quickly. If a firewall was blocking port 53 for DNS requests, or any port for that matter, it would be constant.

2) Disabling the firewall on both the computer and the router did not alleviate the problem. It was only when I directly connected to the cable modem (no local network) that there was no delay in DNS lookups.

I still feel as if this is still a very DNS specific problem. While still connected as a home network, I could ping IP addresses on the web( for google), but not websites (Google). I tried entering DNS servers from both my ISP and OpenDNS into the router, that gave no results. I also entered them into the network adapter as well, with no results.

Changing my Home Network to a Work Network is still working great for me. If anyone has luck with this solution or has a suggestion, please let me know!

Gazzasore: I think your uTorrent problem on the Work Network may be a firewall issue. I'm *assuming* the Windows 7 firewall is a bit more strict on a Work Network, so open up port 6881 after changing to a Work Network and you should be downloading torrents again.
My System SpecsSystem Spec
13 Sep 2009   #5

Windows 7 RC 7100

1) If you don't have 7 on all computers you have to stop Homegroup. So hit window key, type network, chose network and sharing center. Chose Change Advanced Settings. Settings:

  • Turn on network discovery
  • Turn on file and printer sharing
  • Turn off Public folder sharing, unless you want everyone to be able to read and write files in the Public folders
  • If you have XP through 7 use 128-bit if not use 40 - 56 bit.....AFAIK?
  • Turn on password protected sharing
  • Use user accounts and passwords to connect to other computers
2) You can disable the 2 Homegroup services in services.msc if you want to.
3) Put all your computers on the same workgroup. Control Panel/System/Change Settings/Change

4) Now go to Start type netplwiz, you can use Computer Management in Ultimate but in Home Premium thats a us Home Premium users are not that "sophisticated"
Add an account for every user that will share files or printers on your computer

4) Now go to Start/Computer
Right click on any drive/folder you want to share and choose Share with….Specific people, add your users or just select everyone.
5)Either quit right here with your router assigning a IPv4 address and your computers set to "get IP address automatically(DHCP) or change your IP address to something that will work on your network usually something like 192.168.x.x with Default gateway and Preferred DNS set to your router address.
My System SpecsSystem Spec
15 Sep 2009   #6

Windows 7

I have the same problem where a site won't load, I refresh and it works fine. It happens quite a bit. I've tried changing to "work" instead of "home" and that didn't do any good. I've also tried changing to a static IP from my router instead of dynamic and that didn't help either.

Update: I changed my system to use opendns as the dns server and the problem went away. I noticed my browsing seems faster too.
My System SpecsSystem Spec

 DNS issues - Server Not Found - Solution! (kind of)

Thread Tools

Similar help and support threads
Thread Forum
HDD Thrashing, Looked everywhere for solution, Have found none
Hello All, My Computer's HDD is thrashing, not for the entire usage time, but at random times. It lasts from 5-10 minutes, in that time I can do pretty much nothing. I have disabled ReadyBoost, SuperFetch, Indexing, everything in the startup. I almost always have Resource Monitor open, just in...
Performance & Maintenance
Has anyone found a solution to sound lag in Battlefield 3?
I've tried things like enabling only one core or using compatibility mode, but it seems like the game simply won't work properly(without sound lag) if your using a dual-core instead of a quad-core. Is it the case? Is there a solution for dual-core users? Thanks in advance!
WMP mkv playback solution found!
We are all familiar with the wmp's mkv playback issue: when you play a matroska video file directly from the library, the seek bar disappears, and if you try to click on it, the movie will start from scratch. The main reason people stick with wmp I think is the library manager, and is annoying to...
Music, Pictures & Video
No screensaver start -one solution found
Hi; Like many others I was having a problem with the screensaver not starting, and the monitors not powering down (had the same problem in Vista) After going through a series of tests using msconfig and getting no results, I started to un-hook hardware. The first thing I un-plugged was my Contour...
General Discussion
X-Fi Xtreme Gamer solution found!!!
First of all i would like to thank all the guys who helped me solving the issue. This will be a post subject to updates cause i still have something to test. Here's the solution that worked for me: 1) Uninstall each Creative Program you have on your machine 2) Go to the Device Manager,...
Sound & Audio

Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 23:58.
Twitter Facebook Google+