Summary of errors that cannot access the network and how to fix errors on the computer
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Summary of errors that cannot access the network and how to fix errors on the computer


One of the worst problems with a computer is the failure to connect to the network. Even if your computer is active for most of the time offline, being connected while using the internet will make everyone feel very uncomfortable.

If you often experience network failure, you can refer to a few troubleshooting tips below to help you resolve network connectivity problems. The ways to fix the network failure below are very simple and will help you reconnect quickly.

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Ways to fix network errors, not connect to the network

Check Modem, Router

Router Test

This will be the first way to fix the failure to access the network after many attempts to turn off and on again, disconnect the network connection in the network menu on the computer. Most users will try to restart the router or modem when the wifi is out of reach, or at least unplug the network cable connected from the switch when their computer is out of network.

Once you’ve restarted your router, notice if the flashing lights on the router are working. Usually the light icons on the router or modem will have the icon Power, Link / Act, Internet, WLAN and the lights of the network ports on the modem. If you see the lights are on but the Internet light is not on or the indicator is red, it is a sign that your modem is not connected to the network.

At that time, reset your modem, router to fix the error of not accessing the network, there are often many causes that the Internet light on the modem does not light up. And most rebooting the modem or the router will fix the problem.

Check other devices and change the IP address

Check the devices on the same network connection

If you have a device that connects to the same network you are using, you can check if the device has a network connection. If the same connected device uses the Internet normally, now you should check the network connection on your device.

There are many reasons for this error, the main one is still your IP address. The same IP may cause your device to fail to connect to the network while other devices still use the Internet normally.

To fix this, please change the ip address on your computer, you can go to the wifi menu, choose to change the IP address of Windows or Mac computer. Or more simply, turn off and on wifi, or restart your computer.

Reboot the remote modem

Reboot Modem

This is the way you should only use when using the same network with other people, but the modem is not located in your room. There will be cases where you have the same IP and when the modem owner is gone, you will not be able to restart the router.

Now, to fix the problem that you cannot access the network, you should use the remote modem method. But first you have to know the modem’s login password. If you don’t know the modem password, you won’t be able to reboot the modem remotely.

Just type the ip address (usually 198.168.1.1) then log in to the admin account, if left to default, both the account and password will be “admin“. Next go to the section System & Tools and select Reboot, then click Reboot to reboot the modem, in other cases it may be in the section. Advanced Setup.

Run Windows Network Troubleshooter

Troubleshoot problems

This method is not “reputable” but in some cases it will still work. This is the process that will help you check and fix network connection related errors on Windows.

To launch the process, simply right-click on the network connection icon located near the date and time in the taskbar, then select Troubleshoot problems. Troubleshoot will then proceed to check the problem and fix the error that cannot access the network, if successful, the system will re-connect to the network immediately.

Detecting problems

However, if an error pops up with a specific name but Windows cannot fix the error, you should save it and consult the comments on forums or on Youtube about that error. Maybe you will find a fix.

Check the IP address

Network Settings

If after some of the above methods, your network status has not changed positively, you should check if your IP has been assigned correctly or not. Now check if your IP address is properly assigned from your modem or router by right-clicking on the network icon on your computer and selecting Open Network & Internet settings.

Next in your network menu, select the type of network you are using and press Network and Sharing Center.

Network and Sharing Center

Next, double-click the network you are connected to, in the Status panel, click Properties.

Detecting problems

In section Properties Go to Internet Protocol Version 4, double-click on it and check the box in two sections Obtain an IP address automatically and Obtain an DNS address automatically. Finally click OK to complete.

Automatic IP address allocation

Once you’ve completed the setup above, check to make sure your computer is being assigned a valid IP address by the router. Right-click the Start icon on the taskbar and select Windows PowerShell (Admin).

Windows PowerShell (Admin)

Next type the command “ipconfig“and find the information under the Ethernet adapter for wired networks or under the Wireless LAN Adapter section for wifi.

Windows PowerShell (Admin)

Then, enter 2 commands one by one ipconfig /release and ipconfig /renew so that your computer is assigned a new valid IP address.

Run the Ping and Tracert commands

If you have re-issued the IP address but the network is still unable to access, it is probably because the router is connected to the Internet.

To fix it, type the command “ping 8.8.8.8“in the window Windows PowerShell (Admin) go to Google’s DNS servers to see if the computer can connect to the Internet or not. Typing “ping 8.8.8.8” command to Google’s DNS servers will send 4 packets to Google.

Ping 8.8.8.8

If it fails, you will receive notification of which packet has encountered a problem while sending. Next you can type the command tracert 8.8.8.8 to track the path of each packet between your computer and Google’s DNS servers.

Tracert 8.8.8.8

The use of the above commands will help you to see if the packets have been sent successfully or not. If you send them without success then you can check where the problem is, on your local network or off the Internet.

Contact carrier

Windows PowerShell (Admin)

After efforts like checking devices like modems and routers getting internet, checking the computer getting a valid IP address from the router and finally finding out the problem is happening outside of the Internet … If your computer is still not connected to the Internet, the best thing to do now is to contact the network provider immediately and notify the technician of the situation.

Most of the ways to check and fix the error that you cannot access the network on this article are easy to follow. If your internet is not stable then check and fix the above instructions.

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