MediaTek MT7921 Wireless LAN Driver for Windows 11: Troubleshooting Connectivity Issues

Introduction

Users of the MediaTek MT7921 Wireless LAN Card may encounter various connectivity problems, including disconnections, flickering Wi-Fi icons, and ping fluctuations. This article provides comprehensive troubleshooting steps to resolve these issues and optimize your network performance.

Identifying the Issues

Before troubleshooting, it's essential to identify the specific issues you're experiencing. Common symptoms associated with the MediaTek MT7921 Wireless LAN Card include:

• Random disconnections from Wi-Fi networks
• Wi-Fi icons disappearing or reappearing
• Wi-Fi card disconnecting within 5 minutes of booting
• Fluctuating ping and latency

Troubleshooting Steps

1. Update Device Drivers

Ensure your MediaTek MT7921 Wireless LAN Card drivers are up to date. Visit the manufacturer's website, in this case MediaTek, to download and install the latest drivers. Outdated drivers can cause compatibility issues and affect connectivity.

2. Disable and Re-enable the Wi-Fi Adapter

Temporarily disabling and re-enabling the Wi-Fi adapter can refresh the network connection and resolve minor issues. To do this:

1. Open the Windows Settings app.
2. Navigate to Network & Internet > Wi-Fi.
3. Toggle the Wi-Fi switch to "Off" and wait for a few seconds.
4. Toggle the Wi-Fi switch back to "On" to re-enable the adapter.

3. Adjust Power Management Settings

The power management settings for the Wi-Fi adapter can affect its stability. To optimize these settings:

1. Open Device Manager.
2. Expand the "Network adapters" section.
3. Right-click on your MediaTek MT7921 Wireless LAN Card and select "Properties."
4. Navigate to the "Power Management" tab.
5. Uncheck the box next to "Allow the computer to turn off this device to save power."
6. Click "OK" to save the changes.

4. Perform a Network Reset

If the above steps do not resolve the issues, try performing a network reset. This will restore the network settings to their default configuration.

1. Open the Windows Settings app.
2. Go to Network & Internet > Status.
3. Click on "Network reset" at the bottom of the page.
4. Follow the on-screen instructions to complete the reset.

5. Contact Support

If you have exhausted all the troubleshooting steps listed above and the issues persist, it's recommended to contact the manufacturer of your laptop or the MediaTek support team for further assistance.