WIFI 6 (Mediatek MT7921) disconnects randomly

Hi, I know that RPanch407 had mentioned router and maybe that was his issue. Many of us have found it to be a driver issue. My issue was also with a brand new HP laptop. I had the same issue in 3 different locations, one of which had a brand new router... so that definitely was not the issue for me. If you have not tried the driver that was recommended in previous posts (I uploaded a link), then that would definitely be worth a shot and can be done in like 5 minutes. I do know that this network device does use some type of new technology and it is highly possible that it is somehow a computer/router communication problem.... Either way, the driver fixed it for many so it's worth a shot! Either way, please post your experience as it can help others find what works for them.

Wow! This is almost as good as the novel I'm currently reading! I just stumbled on this thread after googling "problem MediaTek MT7921 Wi-Fi 6 802.11ax PCIe Adapter" after having lost my wi-fi connection for the umpteenth time. This "phenomenon" began on a brand new, recently purchased HP laptop. Luckily, I have figured out how to reconnect, but now I'm annoyed that I have to keep reconnecting it. After all, it's a brand new laptop. Anyhow, I found it VERY interesting that you narrowed your problem to the router. Now, I'm not as computer savvy as others who have posted and I haven't noticed my Galaxy S20 losing wi-fi, but it's quite interesting what has been tried to solve this seemingly common problem among people with this particular adapter. And, of course, your final assessment. I wonder how many of us have faulty routers? How would I know if my router was faulty? And, if I also have a faulty router, what do I do? I've been connected via Comcast for about 6 years now - do I request a new router? Now that you narrowed your issues to the router, have you been able to ultimately solve your problem? Thanks in advance, Katirina

So update on my situation. I've exhausted every trick in the book and looked at everything I could to figure out why my WIFI would drop randomly so I started to notice mine would cut out every 10 -12 hours like clock work and the only way to get it working again is to restart my pc. now I didn't think about it but my phone is also WIFI 6 (S21 ultra) and I always have WIFI but tonight I looked and it didn't have the WIFI 6 logo just the normal WIFI signal logo so I restarted my phone and now it has the WIFI 6 up and running again. Also before this I had emailed back and forth with ASUS tech support (useless) and they wanted me to send in my motherboard for RMA. I wasn't going to tear apart my PC just to have to wait 2-4 weeks for them to figure their lives out. I cant be without my pc that long.

I have narrowed it down to a faulty router. I have Cox internet with their Panoramic WIFI and this issue only happens with WIFI 6 devices. When I go into the router settings my pc shows connected but when I restart the router it disappears like its not connected even though my pc says its connected.

If you are having similar issues don't rule out your router even if it shows connected on both ends. I had to mess with it enough until it actually showed that it was broken.

That's awesome! So glad to hear! This has been confirmed by many people. You would think that the PC makers would investigate the issue and find out why their drivers have so many problems.

I've been experiencing the same issue. In my case, my laptop is a MSI Modern A5M (Ryzen 5) running Windows 11 and the WiFi6 adapter is the MT7921K (RZ608). It's been two months with this laptop and the error is not common (happened like 5 times), but it happens specially if I leave it turned on without use for some hours. When that happens, I need to turn off the PC (sometimes even if I just restart it, the whole wifi funtion dissapears from windows).

I followed the solution @Jeremyb777 posted and it's working fine. I've uninstalled the drivers from Device Manager and reinstalled from the unzipped file @mohnohobot said (MediaTek-FORCED-10x64-79xx_3.03.01.0508-drp). I'll be posting updates but this seems to be the solution. Thank all of you for the help.