The cause of the WiFi disconnection error is after updating a new Windows version
Have you ever had a laptop disconnect from your wireless network continuously? Or after upgrading the computer to Windows 10 (or Windows 8, 8.1) operating system, your Wifi connection is disconnected. In most cases the cause of the Wifi disconnection is after updating a new Windows version (for example, from Windows 8 to Windows 10), or because the Wi-Fi card settings are incorrect.
If you are facing a WiFi connection error or connection limit error, you can refer to some solutions to fix the error in the following WFISTRICK article.
1. Fix the wireless network card disconnection error on Windows 10, 8.1, 8, 7 and Vista
Step 1: Edit Power Management Settings
1. Mở Windows Explorer.
2. On the Windows Explorer window, right-click the Computer icon (This PC), then select Manage.
3. Select Device Manager in the left pane and expand Network Adapters.
4. Double-click on Wifi adapter, to open the Properties window.
5. On the Properties window, find and click the Power Management tab.
6. Bỏ tích mục “Allow Windows to turn off this device to automatically save power”.
7. Close all windows and check if the error is still there.
8. If the Wifi error still disconnects, follow the steps below.
Step 2: Disable 802.11n (if Wifi network card supports)
The 802.11n Wifi standard (also known as Wireless N) is designed to improve 802.11g Wifi standards, using multiple wireless signals and antennas instead of one. But the use of multiple signals can interfere / 802.11b / g networks nearby and in some cases cause the WiFi disconnection.
To disable 802.11N (wifi standard), follow the steps below:
1. Open Device Manager and expand Network Adapters in the right pane.
2. Double-click the Wireless adapter to open the Properties window.
3. On the Advanced tab, select 802.11n Mode and select Disabled.
4. Click OK to save the changes and close all windows.
Additional:
In addition, you can disable the uAPSD (Unscheduled Automatic Power Save Delivery) feature if your wireless network card supports it.
5. If Wifi still disconnects, proceed to step 3 below.
Step 3: Disable the Power Saving feature
1. Open Power Options from Control Panel.
2. In the Power Options window, find and click Change plan settings.
3. Next select Change Advanced Power Settings.
4. Set the Power plan to High Performance.
5. Scroll down to Wireless Adapter Settings and set Power Saving Mode to Maximum Performance.
6. Click OK to apply the change.
2. Some other solutions
In some cases the Wifi card may be disconnected after you update (update) the driver or update Windows. In this case:
1. On the Device manager window, select Bluetooth adapter and disable it.
2. Restore Windows to the previous version and check the stability of the Wifi connection.
3. Uninstall the wireless network card driver, then restart the computer. After booting, proceed to reinstall the latest driver version for Wifi card on the manufacturer's homepage.
4. Disable Windows Firewall. And if you have a third-party antivirus application or firewall installed, try temporarily disabling or uninstalling these programs on the system.
5. Try another wireless card.
Refer to some of the following articles:
Good luck!
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