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Why isn't wifi working in my house?
I have a computer in my house that has internet, but won't download things and there's something wrong with it, so I can't hook up wireless wifi. I already tried. I tried using an ethernet cord but it didn't work either. Why isn't wifi working?
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Maybe give some free advice about: Computers?
If the ethernet cord isn't working either, odds are it's not the computer; it's more likely to be the router, or the connection to the internet itself.
The instructions below are for Windows; I do not know how to troubleshoot a Mac.
With the cable plugged in, try this:
(1) Go to the Start Menu and click on Run. (if the Run command isn't there, right-click the Start Menu, bring up Properties, and search around in there until you find the option to display the Run command.)
(2) In the Run window enter the following: cmd
(3) Hit Enter. A black window should appear.
(4) Enter the following command: IPCONFIG
(5) Look at the IP address. The diagnosis can be determined by the first number -
If it shows no IP address, but instead says "Media Disconnected", then chances are you've got a bad cable.
If the IP address starts with 169, then there's something wrong with your router.
If it starts with 192, then enter one more command: PING www.yahoo.com
If you get no replies from the PING command, then your internet connection is the problem - call your service provider.
If you do get replies, then the problem is in Internet Explorer's settings. Go to Internet Options in the Control Panel, click the Connections tab, and run through the Wizard.
That's pretty much all I can tell you up front; to diagnose it further, I would have to know the results of the above, or I'd end up having to tell you twenty different things to do depending on what you see.
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