WIFI 6 (Mediatek MT7921) disconnects randomly

Anonymous
2022-04-13T15:55:34+00:00

I just finished building a new pc and installed all the appropriate drivers and software. I have a WIFI 6 router which I have had for a while now and never had any issues with and the motherboard I am using is the ASUS TUF GAMING B550-PLUS WIFI II AM4 AMD B550 SATA 6Gb/s ATX AMD Motherboard. It utilizes the Mediatek MT7921 WIFI card.

The WIFI will randomly disconnect but it says its still connected. Oddly enough I can still load Google and Youtube but nothing else and even then that is intermittent and extremely slow.

Drivers: Ive tried updating, rolling back, deleting and fresh install. no dice

Settings: Ive tried disabling IPV6, Changing from AX to AC to N, etc, Disabled the Bluetooth since its the same adapter. no dice.

Ive even checked to see on another device if my pc is connected to my router while its in this disconnected state and it shows that its connected to my router but it will not connect properly to the internet. I have not had this issue with any other device on my network so I am to conclude that it is most likely to do with this new pc and this Mediatek WIFI Adapter.

Any and all help is greatly appreciated.

Windows for home | Windows 10 | Internet and connectivity

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  1. Anonymous
    2022-06-13T02:18:31+00:00

    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.

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  2. Anonymous
    2022-06-13T01:28:10+00:00

    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

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  3. Anonymous
    2022-06-10T00:47:42+00:00

    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.

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  4. Anonymous
    2022-06-09T22:38:41+00:00

    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.

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  5. Anonymous
    2022-06-08T00:50:04+00:00

    Hi Jeremyb777

    The truth is that I have crossed my fingers and it has not worked for me, when I open a game like battlefront 2 in a matter of seconds the internet is cut off and stops responding correctly, could you please upload the driver folder that you downloaded please, I thank you very much, if this no longer works for me I will take the computer to warranty, although I know that this is the work of a windows update.

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