Mediatek Wifi 6 MT7921 Code 45 error

Question

I've had this problem with my laptop for three days.. everything I've seen and done works, but its only temporary, I don't like having to restart my laptop every time this happens, it's just my laptop having the problem, so it's not the internet. I've already reinstalled the driver and updated it, and even change bios settings to default, but nothing seems to work as the driver just doesn't work after around 1-2 hours..

In the properties in device manager is says, "Currently, this hardware device is not connected to the computer. (Code 45)"

The only thing I can do is restart my laptop, but the fix is just temporary.

Answer 1

Update:

Hello, so I actually still have the problem, It turns out it actually didn't update the bios, it just restarted my laptop, I'm on an Asus tuf gaming a15 laptop, and now it's been getting worse. I have some pictures if it helps

Answer 2

I am also facing same issue with MediaTek Wi-Fi 6 MT7921 Wireless LAN Card since May 2023 for My asus Tuf gaming f15

Answer 3

I have the same problem, if you guys find a solution to this issue, please let me know. I've tried uninstalling windows updates, but the solution works temporarily. Every solution works temporarily. This same thing happened in Nov or Dec 2022. I'm not sure, but I believe Asus had released a few driver updates and installing those helped. So I'm pretty Asus have to do that again, they need to bring driver updates which are compatible with this new windows update. If this is the case, it sucks that updating windows makes drivers obsolete.

For those who want to know, my laptop is Asus TuF A-17 RTX 3050 Ryzen 7 4800H, windows updated to the latest June 27 Build 22H2 (22621.1778) BIOS version 302, and all my drivers such as Wireless LAN MediaTek, LAN ROG Realtek, Wireless Radio Control, AMD Chipset are the latest.

Answer 4

I experiencing the same problem and believe I found at least a long-term workaround. Do note that this is not a permanent solution, but should subdue the problem for a least a few weeks to a couple of months before needing to redo the process.

If you could to most other web pages regarding the same problem, they will most likely tell you to restart your computer, open the command prompt and type a few lines of code, or perhaps restart your BIOS. I can say that sometimes it works but it is not a 100% guaranteed solution. It is also a good idea to head to your computer's model webpage and ensure you have the latest driver installed.

The method I found that has proven the most useful is to manually clean the hardware of the computer. Rather than trying several software solutions, look toward a hardware solution. I can not speak for all computers/laptops, but for my ASUS A15 Gaming Laptop, I simply remove the underside panel showing the circuit board, battery, memory card, and all the gizmos. To my understanding, the reason for the Code 45 is that the Wi-Fi card is overheating and this is due to not enough air circulation in the laptops. I would recommend cleaning (safely) the small motor fans built into the computer to remove any dust or debris. I predominantly use a lightly damped paper towel to remove the dirt but a dried one. If you are unconfident in your abilities, take it to a professional. Once complete, reattach the undersized panel that is back in place and restart your laptop.

From personal experience, this has solved my Code 45 problems for up to a few weeks to maybe a little over a month before needing to repeat the process. I believe that the Mediatek Wifi 6 MT7921 was manufactured without being resisted to high amounts of heat. Therefore, having constant airflow to provide a cooling mechanism is essential and theoretically solves the problem.

Use this information at your discretion. Best of luck.

Answer 5

Hi

I am Dave, I will help you with this.

Go to the support page for your laptop on the manufacturers website, then from there, download and install the version of WiFi drivers they recommend and while there, check for any BIOS or Firmware update that may need to be installed.

In Device Manager, right click that MediaTek device and select properties, is there a Power Management tab on the resulting dialog, if there is, turn off both options on that tab.