How to Diagnose Why Windows Can't Find Any Networks


The Internet has made daily life much easier, but sometimes trying to connect to it is difficult. If your computer has a network adapter and it is turned on, Windows should be able to find networks within range. If there is a problem and your computer can't find any, use the Windows network diagnostic tool to help diagnose the problem. Keep in mind that often the problem lies with the network or modem itself, and not with your computer.

  • Turn on your wireless network. There will be a button on your computer that can be pressed to toggle the wireless card on and off. For wired connections, plug the Ethernet cable into the back of your computer and make sure the other end is connected to the network router.

  • Make sure the Internet network is within range and is functioning properly. It is possible that you simply aren't close enough to a wireless connection. If you are connecting to a wired network, check on the connectivity of the modem. There will be a green light that flashes to let you know the modem has Internet connectivity. Reset the modem by unplugging all cables including the power source and Ethernet cables. After two minutes, reconnect everything and see whether the Internet is working. If not, the problem is with your connection and you should contact your Internet service provider.

  • Physically move the network router away from any electronic devices such as cordless phones and microwaves. Sometimes there is interference from these devices because they might be using the same channel frequency.

  • Click "Start," then "Control Panel," then "Network and Internet," then "Network and Sharing Center." Click on "Diagnose and repair." Another option is to look at the connection in the bottom-right corner of your Windows screen. It will be an icon of two computer monitors and will be located next to your clock. Right-click on it and select "Diagnose and repair." Windows will then automatically attempt to diagnose the network problem.

  • Select the best repair option listed by Windows. If there is no problem, Windows will let you know. If it cannot find a Network, Windows will provide the reason why and explain the best solution to fix the problem. Select an option and continue. There are many reasons for a failed connection, such as Windows being unable to find a primary DNS server, the access point being busy, or no network being detected. Once Windows attempts the repair, it will try to connect to the internet again.

  • Agree to "Reset the Network adapter," if Windows could not fix the problem. Windows will then shut down your network adapter and restart it.


  • Photo Credit network cable image by Radoslav Lazarov from
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