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    7 simple steps to diagnose a network problem

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    Aina Prat Blasi
    @ainapratblasi

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    Of all the types of computer problems you can have, network problems are one of the worst. Even though our computers can work offline, being excluded from the Internet is no fun. Even worse, when we don't have the ability to connect, it's not easy to look for solutions to fix the problem.


    In this article we will see how to troubleshoot network connectivity problems. That way, the next time you open your web browser and see a message saying Unable to connect to WiFi, you will know what to do. After each step, try connecting to a website to verify that the connection is working. If it still doesn't work, try the next solution.



    http://192.168.1.1: prova e configura la tua connessione wifi

    Make sure that the network problem is indeed yours

    Sometimes what looks like a network outage is actually it could be a specific website problem. If you can't browse Twitter, for example, check other websites to make sure the problem isn't just with a single site.

    You can use IsUp.me to easily check if a website is not working for everyone or just for you.


    There's no need to get upset right away, as the solution to your problem might be as simple as restarting your modem. Restarting solves a lot of problems, so make it your first answer to network problems.

    Go ahead and restart your PC, as well as your modem and router. To clear the modem or router cache, wait 60 seconds before turning them back on. When you plug everything back in, plug in the modem first and wait for it to turn on before plugging in the router.



    Turning everything off and on ensures that this is not a temporary network issue. It is better to restart now rather than wasting 30 minutes continuing to perform unnecessary procedures for the moment.


    Once you've restarted, if you have another computer (or mobile device), try connecting with that device. If you notice that no devices are able to connect, it is likely a problem with the equipment or your ISP.

    If you find that only one computer is not connecting, you can continue to narrow down the problem. On that device, be sure to run a virus scan to make sure malware isn't interfering with your connection. You also need to make sure your firewall settings are not blocking the connection. Finally, try using a different browser.

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    Check physical connections


    Is your network problem still after reboot? Before you start diving into settings and testing, the next step to check is that you are physically connected.

    If you are using an Ethernet cable to connect to the router, make sure it is not disconnected or damaged. If your laptop has a physical wireless switch, make sure it's not set up on position off.

    Once you have verified the correct connection, check the equipment. Are the lights on the router and / or modem flashing green as usual? If no lights come on after rebooting, the device may be broken or malfunctioning. However, if you only see red lights, or only one power light, but no connection lights, there is likely a network failure.



    Run the Windows Network Troubleshooter

    Windows includes some troubleshooting tools that can automatically find and fix some problems. To run the troubleshooter for network problems, right-click the network icon in the system tray and select Troubleshooting. Once you run the troubleshooter, you can fix problems, find problems but not fix them, or find nothing.

    If the troubleshooter finds a problem and fixes it, try connecting again. If you get an error or it's a specific problem that Windows can't fix automatically, take note and do a research to find out how to fix.

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    Check for a valid IP address

    At this point, you have verified that the problem is not temporary and that all of your hardware is working. Since Windows cannot fix the problem on its own, you need to find out where the problem occurs.

    It's a good idea to make sure you don't have any strange IP settings selected. To check this, open Settings i went his Network and Internet> Status. Under the header Change your network settings, select Change your options. In the resulting window, double-click your network name.

    Next, you will see a status window. Click the button Property.

    Here, double click on the entry Internet Protocol Version 4.

    Unless you've set a static IP (if you don't know what that is, you probably don't use one), make sure you have both Ottieni automatically an IP indirizzo e Obtain DNS server address automatically popped. Repeat this process for Internet protocol version 6 to make sure everything is set up automatically there too.



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    Review of the validity of the IP address

    After doing this, you can verify that the router gives you a valid IP address. Open a command prompt window by typing cmd in the Start menu. Insert ipconfig and look for the text under Card Ethernet (for wired connections) or card Wireless LAN (for wireless connections).

    If theIPv4 address begins with 169.xxx, your computer is not receiving a valid IP address from your router. Typing the following two commands will release the computer's current IP address and prompt for a new one, which may resolve connection problems:

    ipconfig /release ipconfig /renew

    If I still had an address 169.xxx after typing the above commands again and ipconfig, your computer is not yet receiving an IP from the router. Try connecting your PC directly to the modem with an Ethernet cable and see if you can connect. If so, your modem is your problem.

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    Try a ping and trace its path

    If your IP address starts with something other than 169 when you run ipconfig, you have a valid IP address from the router. At this point, you've confirmed that the problem is somewhere between your router and the internet.

    Type this command to ping Google's DNS servers to see if you can get online (you can replace 8.8.8.8 with anything, like www.msn.com ):

    ping 8.8.8.8

    This will send four packets to Google. If they don't start, you'll see some basic information about the error. In case you want to keep pinging indefinitely so that you can monitor it while troubleshooting, just add a  -t in the end, like this:

    ping 8.8.8.8 -t

    You can press  Ctrl + C to stop the ping at any time. For more information, type this command to trace the path between your computer and Google's DNS servers:

    Tracert 8.8.8.8

    The previous command offers a detailed breakdown of the path that the information takes to reach the specified destination. Look at it, and if it fails, check where the problem is. If an error occurs at the beginning of the path, the problem is likely with the local network.

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    Further Reading:

    • What is the LAN? The definition and use of a local network
    • Safari not working on your iPhone? Here's how to fix
    • Mobile network not available how to fix
    • Reset Android network settings
    • What to do when Facebook Messenger doesn't work
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