Hi everyone,I'm having a problem connecting to the internet. I installed a windows update (not sure which one or how to check) and then restarted my computer. After restart, I had no connectivity to the internet and upon trying to Diagnose and Repair, the system told me that it couldn't be fixed automatically and may be a problem with my DSN. Can anyone give me an idea of where to start repairing this?

Hello,I am assuming you are using Windows Vista.Please try the following steps.1. Open Internet Explorer 7. 2. Click Tools, and then click Internet Options. 3. Click the Advanced tab. 4. Under Reset Internet Explorer Settings, click Reset. You can also find more information onhttp://support.microsoft.com/kb/926431

I'm running Mozilla Firefox 3.0.5. I am running Windows Vista too. None of the problems occurred until after the updates.

Open command prompt (cmd.exe), use nslookup to try resolving the URL, such as google.com, yahoo.com, etc. See whether it works. If not you can configure following free DNS servers from OpenDNS and try to do nslookup again. 208.67.222.222208.67.220.220If everything is configured correctly but still not working, try to use netsh winsock reset to reset winsock catalog and test again.

I tried the nslookup and it didn't work after I turned my wireless off. The strange thing is I can access a nearby wireless network, but not my hardline network. Will the winsock reset have any negative effects? I'm sorry, I'm not familiar with this kind of computer work. Thanks for the help guys!

Hi, Thank you for your post. If it is possible, we can try to use the System Restore to restore the system back to the previous status when the issue didnt occur. (Note: Performing a system restore may cause the loss of the current system settings; therefore, before doing this, please make sure that the system restore point is not too old and set a restore point for the current status.) At this time, I would like to suggest the following: 1. Please let me know which connection you are using to connect to the Internet, wired or wireless? And how do you connect to the Internet, via a router or a direct connection? 1) If the wired fails, have you tried the wireless one? Or vice versa. If you have another computer connected on the same network, please also check if it works. 2) If you connect to the Internet via a router, please also check your router settings. If needed, please contact your router manufacturer or ISP regarding this issue. 2. Please upgrade the drivers of your wired and wireless NICs. 3. Please check the network settings: Please go to Control Panel Network Connections, right click on your connection and choose Properties. (if you have multiple connections, please check the one you use and disable the unnecessary ones. ) 1) On the Network Tab of your Connection properties, please choose Internet Protocol Version 4 and click Properties. And then check if both of the IP Address and DNS are set to be delivered automatically. 2) If setting to obtain the IP Address and DNS automatically, please try to manually assign IP address, subnet mask, default gateway and the DNS settings referring to your routers settings to see if this works. 4. Run sfc /scannow to check if there are any files corrupted. 1) Open an elevated command prompt. To do this, click Start, click All Programs, click Accessories, right-click Command Prompt, and then click Run as administrator. If you are prompted for an administrator password or for a confirmation, type the password, or click Allow. 2) At the command prompt, type the following command, and then press ENTER: sfc /scannow After checking, if the issue persists, please help collect more information: 1. Lets run CMD and then ipconfig /all to export all the network settings and post the information to this thread. 2. Please check the event log. Is there any related error message? 3. Based on my experience, the issue may also be related to the device drivers of the NIC chipsets and the firmware of the router. As you are able to connect to other wireless network nearby, I think the local settings should be OK. Therefore, I would like to suggest that you also check your wireless router manufacturers website and check if there is any upgrade version of firmware. Hope this helps. Thanks. Nicholas Li - MSFT Nicholas Li - MSFT