Came across this error today on a computer that would connect to the internet just fine but when you tried to go to another page you would get this error message. After a little troubleshooting I was able to find a quick and easy fix for this. Here are the steps to fix this problem. 

1) Open up Interet Explorer and then go to tools > internet options.

2) Click on the Connections tab.

3) Now click on the button that says “Lan Settings

4) Place a checkmark on “Automatically detect settings.”

5) Now click OK and then click on OK again to close the settings box. Close out Internet Explorer and open it back up. You should be able to go to any webpage and not get this error anymore.

I hope this helps you and if you still have problems let me know and I can give you some other things to try.

I was setting up a new Dell Optiplex 790 today and after installing (Windows 7 pro 64 bit edition), I was trying to download the drivers for it and having a hard time downloading them from Dell’s website. I went to my laptop and had no probleming downloading them. I then updated the nic driver for the Optiplex and still had problems. While after searching on Google for awhile I came across a fix:

You need to go to an elevated command prompt. You can read about how to get to that here: http://www.sevenforums.com/tutorials/783-elevated-command-prompt.html

Once you have the elevated command prompt type in:  

netsh interface tcp set global autotuninglevel=disabled

You should a message that says “Ok.”

Now you should have no problems with downloading files as this solved my problem.  This is the first time since working on a windows 7 machine that I have ever experienced this. Hope this helps you.

RG