Super User is a question and answer site for computer enthusiasts and power users. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I have two laptops:

  1. Windows Vista laptop which connects fine to Internet (writing this post from it now)
  2. Windows XP SP2 laptop which connects fine to Wifi, Router but not Internet

When I try to connect to the Internet via Firefox or IE on the XP laptop the browsers fail to connect. When I open the Wireless Network Connection Status window it says:


  • Status: Connected
  • Network: MyNetwork
  • Duration: 53:20
  • Speed: 54.0 Mbps
  • Signal Strength: (an image of 5 bars and all are green)


  • Packets Sent: 96,443
  • Packets Received: 89,505

It basically looks like this image below, with the little lock icon except the two screens are blue and sometimes gray in my version:

enter image description here

In my Network Connections > LAN or High-Speed Internet window I see:

  • Local Area Connection has a red X next to it because I am not plugged in with Ethernet cable.
  • The Wireless Network Connection says it is Connected, Firewalled Intel(R) Pro/Wireless 3945ABG Network Connection
  • Then I see another connection (not sure what this one is for) called 1394 Connection Connected, Firewalled 1394 Net Adapter

When I open up Command Prompt and enter ipconfig I get three main sections under Windows IP Configuration:

  • Ethernet adapter {2EDECBB3-DC69-40BB-ADCC-398D8A1734B2}:
    Media State ................ : Media disconnected
  • Ethernet adapter Local Area Connection:
    Media State ................ : Media disconnected
  • Ethernet adapter Wireless Network Connection:
    Connection-specific DNS Suffix . :
    IP Address ................ :
    Subnet Mask ............... :
    Default Gateway ........... :

Now I try pinging because I realize this is one way to find out if there is a problem. My ping tests follow:

ping = success Packets: Sent = 4, Recieved = 4, Lost = 0 (0% loss)

ping = success Packets: Sent = 4, Recieved = 4, Lost = 0 (0% loss)

ping = failure Packets: Sent = 4, Recieved = 0, Lost = 4 (100% loss)

ping = success Packets: Sent = 4, Recieved = 4, Lost = 0 (0% loss)

Now on to Windows Firewall. When I try turning it off and going to a webpage on Firefox or IE I still can not connect to the Internet/webpage. Also, Firefox is checked in the list of exceptions in the Windows Firewall window.

I should mention that the other day an iTunes/Apple Software Update window popped up randomly. I assume that somehow it was connecting to the Internet and got a message from Apple to update the software. Also, in my Notification Bar I see the yellow shield icon. Clicking it brings up the Windows XP Automatic Updates window and it says I have 5 updates ready to install. When I click install on both the Apple and Windows update windows I get failure to install messages. So perhaps it is connecting via one port but when it attempts to download it is being blocked by the firewall? Not sure.

What should my next step be in getting connected to the Internet?

share|improve this question
In the IE preferences, make sure that you aren't set to use a non-existent proxy server. It's possible that this somehow got set without your knowledge. – Joe Internet Jul 9 '11 at 3:45
That is my first thought as well. A proxy [possibly set by a virus] – Kevin Jul 9 '11 at 3:56
@Joe But how does that explain Firefox not working? – classer Jul 9 '11 at 21:14

That "ping = failure" is a major clue. I suspect that either your TCP/IP is goofed up, or your C:\Windows\System32\drivers\etc\HOSTS file has been changed.

First, I would try a simple ipconfig/release then ipconfig/renew and try that ping again.

Second, try updating your wireless driver. That may fix unseen problems.

I would then reset my TCP/IP with this command: netsh int ip reset then reboot.

As in the comments, I would not rule out a virus either. Scan with Malwarebytes, Superantispyware, and Hitman Pro.

share|improve this answer
Thanks I will try this – classer Jul 11 '11 at 20:25

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .