How to fix weak, laggy, intermittent wifi on laptop?

The horror of using the internet is the laggy, unstable network. This is even more terrible when you play games. That is why the weak wifi laptop error makes many users feel uncomfortable. This weak wifi error is a fairly common error, occurring mostly with all laptop users. So how to solve this situation? Let's find out how to deal with the weak wifi laptop error in the article below!

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1. Restart Wifi

The device that is responsible for broadcasting wifi for other devices to use is the Modem/Router. With the intensity of maintaining 24/7 operation, the wifi transmitter will always encounter a state of heat and overheating. This causes the internal components of the Modem/Router to operate with poorer quality, leading to poor wifi signal and unstable connection. Therefore, if your laptop has weak wifi, restart the wifi or at least let it rest for about 1-2 minutes and then restart. Although this method is very simple, many people have successfully applied it!

2. Unlock bandwidth on laptop

Normally, to ensure stability, the laptop wifi card will be limited to a certain level. However, if your laptop's wifi connection is weak and does not ensure stable quality, we can adjust the wifi access speed on the laptop in the following way:

Step 1 : Access Device Manager by right-clicking on the Window icon in the left corner > select Device Manager (or search in the Cortana Search box)

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Step 2 : In the Device Manager window, select the following steps: Ports/ Communications Ports/ Port Settings tab, set the Bits per second option to the maximum (ie 128000) and the Flow control item to Hardware then click OK to save.

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3. Scan for viruses and remove malware

While using the Internet, we accidentally access unhealthy websites or files shared on the network, leading to the computer being infected with viruses or installing malicious software without knowing it. The laptop's weak wifi connection or even no wifi connection can also be due to this reason. Therefore, if your laptop suddenly encounters a weak, unstable or disconnected wifi connection, check your daily usage habits, scan for viruses and remove the software you suspect.

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4. Move the wifi transmitter to a more suitable location

For general users, most people use routers provided by their network operators or cheap mid-range Wifi transmitters. The downside of these transmitters is poor coverage, affected by space or obstacles. If you encounter a situation where your laptop has a weak wifi signal, make sure the place of use is close to the transmitter or place the wifi transmitter in a central location where it can achieve the best signal transmission without being obstructed by walls or other objects.

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5. Update wifi driver on laptop

Driver is the device manager on the computer. If it is faulty or damaged, it will also affect your wifi reception ability. Updating the wifi card driver is also quite easy. The steps are as follows:

Step 1 : Access Device Manager

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Step 2 : Select Network adapter > Uninstall wifi card driver

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Step 3 : Reset the computer. After resetting, for Windows 10, the missing drivers will be automatically updated.

6. Clear cache, web browsing history

Cache is a temporary data used by different browsers such as Internet Explorer or Google Chrome, Mozilla Firefox, etc. It helps users to open web pages quickly without having to reload the content. This cache is designed to increase internet speed but sometimes it can slow down if it exceeds the size limit. In this case, you need to clear the cache to improve the poor wifi connection.

If you are using Chrome browser, you can do the following:

Step 1: On Chrome browser, press Ctrl + H

Step 2: Select Clear Browsing data

Step 3: In the Time Range section > select All time to delete all web history > click Clear data to perform

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7. Call the operator

After performing all the above operations but still cannot fix the laptop's weak wifi connection error, we can only use the last method of calling the operator. The operator's operator will help you diagnose the status of your network on the system and provide appropriate solutions.

In case it cannot be handled immediately, technicians will be sent to support you. You can refer to the hotlines of the network operators below: 

1. FPT Internet: 19006600
2. Viettel Telecom: 18008098
3. VNPT: 028800126
4. SCTV: 19001878

Above are all the ways to help you fix the problem of weak wifi on your laptop. If you encounter this situation and want to handle it yourself, try applying it. If you need to upgrade a good wifi transmitter with strong signal, please refer to TipsMake's network and wifi products here: https://www.hacom.vn/router-wifi

Marvin Fry

Update 16 January 2025