[SOLVED] Mediatek MT7921 Not Working

A number of people are reporting a problem with the Mediatek MT7921 where Wi-Fi is unable to connect to a network after a laptop is in sleep mode or powered down for extended periods of time. The card cannot find any network connections. Not being able to connect to Wi-Fi is very frustrating.

The MT7921 is a Wi-Fi 6 chipset that is featured in ASUS ROG and TUF laptops. The closest competitor to it is the Intel AX200. In fact when people are unable to get the 7921 to work, they replace it with the AX200.

There are a few of ways to solve this problem so let’s get to it

Solution 1 – Power reset

  • Unplug the laptop from the AC supply
  • Press the power button for 60 seconds (you will likely need a timer for this as anything less than 60 s won’t work)
  • Turn on the laptop again
  • This action forces both Wi-Fi and Bluetooth cards to reset
  • The Wi-Fi should work normally after this

Solution 2 – Update the drivers

  • Download myAsus app
  • Go to the Support menu
  • Click live update and here you can find a WLAN update
  • Download and install it
  • This should resolve the issue

Solution 3 – Reset BIOS to default

It’s likely that a Windows update changed the BIOS setting to one that’s incompatible with the Wi-Fi chipset drivers.

  • After your laptop has booted and you are able to see the windows desktop, press the power button for 20 seconds
  • Wait for a complete 20s even if the PC has shutdown and there’s nothing but a black screen. Use a timer for this if you have to.
  • Press power button to boot and press F2 until you get to the BIOS
  • Press F9 and answer YES to get the default BIOS setting
  • Press F10 and answer YES to save
  • Restart your laptop
  • PC will reboot by itself and after that Wi-Fi should be operating as normal

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