How to fix laptop error that cannot connect to wifi in Windows 10

Windows 10 launched with many improved features for users. However, after upgrading to Windows 10, there are many problems you will face such as incompatible software, missing drivers,. of which the highlight is still the situation of not being able to connect to wifi even though you have fully installed it. enough wifi drivers, or wifi is still detected but while using it suddenly disappears. So if you are in a similar situation, the article that Taimienphi shares below will give you some solutions to help you fix it. Fix the error of laptop not being able to catch wifi in Windows 10 thoroughly.

1. Reset TCP/IP

Another way to fix the error of laptop not connecting to wifi in Windows 10 is to try resetting TCP / IP. This is also one of the most popular ways to fix Wifi errors on Windows. Follow the steps below to reset TCP / IP to fix the error of laptop not catching wifi in Windows 10:

Step 1: Enter cmd in the Search box on the Start Menu, on the search results list, right-click and select Run as Administrator to open Command Prompt under Admin.

Step 2: On the Command Prompt window, enter each command below and press Enter after each command:

netsh int ip reset

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netsh int tcp set heuristics disabled

netsh int tcp set global autotuninglevel=disabled

netsh int tcp set global rss=enabled

Step 3: Finally, restart your laptop and try connecting again to see if the error persists.

2. Change the SSID and password on the modem

If the above methods are not available, you can try changing the SSID and password on the modem to fix the error of your laptop not being able to connect to wifi in Windows 10.

The steps to change SSID and password on different modems will be different. So my advice is to search online or check the modem manual to see how to do it.

3. Fix errors using Internet Connection Troubleshooter

If you're running Windows 10 v1703 (Creators Update), in the Settings app you'll see a new Troubelshooter option. This option can be used to fix system errors, including Wifi errors.

Follow the steps below to fix the error of laptop not connecting to wifi win10 using Internet Connection Troubleshooter:

Step 1: Open Settings by clicking the cog icon on the Start Menu.

Step 2: Here you find and click Update & Security .

Step 3: Navigate to Troubleshoot .

Step 4: Click to select Internet Connection Troubleshooter .

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Step 5: Follow the on-screen instructions to fix the error.

Step 6: Finally restart your computer.

4. Make sure DHCP is enabled

DHCP is the Windows process that assigns a computer IP address when a user connects to a network. If this process is turned off, the computer cannot get an IP address and cannot connect to wifi. To fix the error of your laptop not being able to connect to wifi in Windows 10, you need to make sure this process is running on the system.

Step 1: Open the Network Connections window .

Step 2: Find and right-click your network card, select Diagnose .

Step 3: Wait until the process finishes. If DHCP is disabled, it will then be enabled again. Finally, check to see if your laptop can connect to wifi or not.

5. Set the IP address manually

Finally, if the above methods are not available, you can set the IP address manually to fix the error of laptop not catching wifi in Windows 10.

Step 1: Open Settings and select Network Connections .

Step 2: Right-click on the wifi network and select Properties .

Step 3: Select Internet Protocol Version 4 (TCP/IPv4) and then click Properties .

Step 4: Select Use the following IP address , then enter the address in the IP address , Subnet mask and Default gateway boxes .

Next is to enter the DNS server address manually. In this tutorial, we use Google's Public DNS address, but you can use 192.168.1.1 as the Preferred DNS server address.

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Step 5: Finally click OK to apply the changes and check if the error of laptop not being able to catch wifi in Windows 10 still exists or not.

6. Restart the computer

No matter what error your computer has, restarting the computer is a simple way to handle all problems, not just WiFi errors, but many other minor errors as well. The reason could be that the computer has been operating for a long time, leading to errors, or during the process of using Windows, there was an accidental software conflict, a corrupted file.

7. Re-enable WiFi on/off mode on Laptop

This is considered one of the common reasons why your computer cannot access WiFi. The main cause may be due to your negligence or someone using your laptop and accidentally turning off the WiFi detector on the laptop, resulting in the computer not being able to connect to the internet.

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To fix it, you just need to use the shortcut key combination to turn the WiFi detector back on. Normally, you will use the shortcut key combination Fn + Fx (where x can be a series of numbers from 1 to 9 depending on the laptop brand you are using). However, each type of computer will have a different location for shortcut keys. Some types use hard keys, so pay attention.

Dell laptop: Fn + F2 or PrtScr
Asus laptop: Fn + F2
Lenovo laptop: Fn + F5 or Fn + F7
Acer laptop: Fn + F5 or Fn + F2
HP laptop: Fn + F12
Toshiba laptop: Fn + F12

With Sony Vaio or some other devices, there will be a separate button to turn the laptop's WiFi detector on and off.

See more ways to turn off and turn on wifi on laptop here

8. Restart Modem, WiFi Router

Just like on a computer, a Modem or WiFi Router for some reason has a conflict that causes the computer to not be able to connect to WiFi or because the device has been operating for a long time, causing it to hang. Very simple, you just need to turn off and turn on the Modem, WiFi Router or unplug the power source and plug it back in, then the device will automatically "fix" the conflicts and your computer can connect to WiFi again normally. often.

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9. Reconnect to the WiFi network

Sometimes, for some reason, your WiFi Modem or Router fails and causes a situation where the WiFi network cannot be detected, cannot be accessed, or can be accessed but cannot access the network. You can try deleting WiFi and reconnecting to that WiFi. Please refer to the instructions for deleting WiFi connected on your computer that we shared previously.

10. Renew the IP address

When you access a router, your computer will be given an IP address by the router and this address can change from time to time and is not always a fixed number, which is why people call it. is dynamic IP. However, in some cases the router grants the same IP range to two different devices, leading to a conflict and one or both computers cannot access the network.

The solution for you now is to "renew" your computer's IP address by pressing the Windows + R key combination to open the Run dialog box and typing cmd then pressing Enter or OK.

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The Command Command dialog box appears, enter the following command lines and press Enter after each command line.

net stop dhcp
net start dhcp
ipconfig /release
ipconfig /renew

After completing and receiving the results as shown below, try reconnecting to the internet.

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12. Reinstall the WiFi driver

It is not uncommon for users to reinstall Windows themselves and not know how to install the driver, or even install the wrong driver for that device. To check whether your computer has installed and updated the driver or not, you can do the following:

Step 1: From the user interface, press the Windows + R key combination and enter the command hdwwiz.cpl and press Enter or OK .

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Step 2: The Device Manager interface opens, double-click Network adapters to check if there is a yellow exclamation mark icon or not. If there is a yellow icon, the WiFi Driver is likely not installed or the device receives the wrong Driver.

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To fix this, you need to visit the company's support website, find the driver list for the model you are using and download the WiFi Driver package to your device to install. It sounds easy, but if you do it, you will find it difficult to use the DriverEasy tool to quickly update computer drivers. For details, readers can refer to the instructions on how to install DriverEasy to update the driver we previously shared.

13. The computer is infected with a virus

Having a virus-infected computer that causes you to not be able to access WiFi is also quite a common reason, mainly because you use software of unknown origin or do not have anti-virus software to protect you. The solution for you now is to reinstall Windows and use free and copyrighted anti-virus software to install suitable software on your computer.

14. WiFi card is broken

The case of a broken WiFi chipset is no exception, but the rate of failure of this part is quite rare. At that time, you can't do anything more than take the device to a reputable warranty and repair center to have it checked and replaced.

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In addition, the wifi symbol with an exclamation mark may also be due to a network device such as a modem or wifi router that cannot allocate an IP address for the device. Therefore, to fix this error, readers can refer to the instructions for fixing the yellow exclamation point Wifi error that we previously shared.

15. WiFi Modem, Router is broken

You also need to consider whether the Modem or WiFi Router device is broken. In this case, the easiest thing you can do is call the network's technical staff to check for you. This method is quite convenient and extremely good for those who are not familiar with computers or networks.

Internet trouble support hotline:

- Viettel: 1800.8098
- VNPT: 028.800126
- FPT: 1900.6600

So, above are some causes and ways to fix the error of the computer not connecting to Wifi that readers can apply and share with friends who are experiencing these situations. In addition to the above situations, readers also need to pay attention to the input language, especially when the Wifi password is easily typed into Vietnamese. In addition, the case of users not being able to find wifi network information is also quite common and through this article we have previously shared instructions on how to fix the computer error of not being able to find a wifi network. .

Lesley Montoya

Update 18 June 2024