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

Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.

0 comments No comments

107 answers

Sort by: Most helpful
  1. Anonymous
    2022-06-07T22:25:36+00:00

    Hi Alvaro,

    I am looking but also can't seem to find the same exact driver that I am using. The driver that I am using is version 3.0.1.1309 and was released on 3/17/2022. I'm pretty sure that the website that I downloaded it from is:

    https://oemdrivers.com/network-mediatek-mt7921-wireless-lan-driver

    However, I don't see the exact driver that I used. I know that the one I used came from Lenovo, but the link above has some a newer version, so maybe they replaced the former one with a newer one. You can try the newer one... however, if that doesn't work then I can find a way to upload the one that I have for you to be able to download it and try it. Hopefully, that won't be necessary.

    Was this answer helpful?

    0 comments No comments
  2. Anonymous
    2022-06-07T21:38:32+00:00

    I have a newly purchased HP Pavillion laptop with the wifi adapter (Mediatek MT7921). It would frequently lose internet connection, then not show any networks available, then seem to disappear for a few minutes, and then reappear. I believe windows was detecting that the device would stop working, then attempt to restart the device driver. I tried everything... updating drivers, uninstalling, reinstalling, as well as pretty much everything that you said. I eventually started getting Blue Screen of Death. The strange thing is that when I ran a component test in the BIOS, it would always pass.

    I even performed a couple of HP Cloud Recovery Factory Resets... but this didn't fix it either. Even before I ran any updates or installed any programs, the problem persisted on a factory reset machine. I began to theorize that maybe the driver that HP included with their recovery image and on their driver server was somehow corrupted or defective. I then determined to download a Windows 11 ISO directly from microsoft (and not HP) and let microsoft find drivers. This went well until I could not complete the setup process because it didn't detect any wifi networks. Turns out that the Windows ISO didn't have a proper driver either. There was a way to open up a command line and install a driver through there. So I looked online and found another driver (not sure from which provider) which worked enough for me to install Windows 11. But then again, on a fresh installation of Windows 11, I had the same problem. I then decided to try another driver. I downloaded a driver called "MediaTek-FORCED-10x64-7961_3.00.01.1309_lenovo-drp" that I found on a third party site. Upon closer review, I think it actually might be for a slightly different adapter... Anyways, I removed the other driver and updated it to this one and kept my fingers crossed to see what would happen.

    Well, 30 minutes went by, then an hour, then 2, then several... then overnight... then all day so far today I have not had a single problem. Normally, if I open up windows event viewer, I will see tons of errors related to the networking and internet. However, there are little to no errors being reporting and the internet has not stopped working once. This makes me think that my theory may have been correct... that maybe there are some faulty drivers being provided through HP and maybe even ASUS... I don't know... However, I would encourage you to try finding the driver that I mentioned and give it a shot. I was about to give up on this computer and/or just install linux, but this seems to have solved the problem.

    Hi Jeremyb777, I've searched for the specific driver on the internet but it doesn't appear in driverpack anymore, or I don't know if I'm looking wrong, I just can't find it, could you tell me the exact link where I can find it if it's not too much trouble?

    Was this answer helpful?

    0 comments No comments
  3. Anonymous
    2022-06-01T11:26:16+00:00

    Gracias a Dios! Me alegro oir que funcionó para usted!

    Was this answer helpful?

    0 comments No comments
  4. Anonymous
    2022-05-07T16:00:27+00:00

    Are you able to check if plugging in an ethernet cable works fine?

    But also, I don't know if there's logs on Windows but EventViewer might show something to go on. It could be possible that the router log might also show what the issue is.

    Routers are quite complex so unless you try a different router for wifi I wouldn't rule out a bug here from the router. They do have bugs and other issues.

    Also you can test other connection types from changing how it works on the router from its browser interface like quickly trying no wifi security, different encryption/security, etc. Some incompatibilities exist that way. There's no way to know exactly how issues will manifest.

    Mediatek drivers are quite decent from what I know with the chips I use from them. This is Windows 10 so I'd expect it to be quite stable. But, I'm sure someone could run into a bug. Maybe update the BIOS if you haven't as that's tied to the internal hardware.

    Also possible for it to be Windows networking code. Some people have weird configurations with problems. But, I'd expect something else instead of this.

    Was this answer helpful?

    0 comments No comments
  5. Deleted

    This answer has been deleted due to a violation of our Code of Conduct. The answer was manually reported or identified through automated detection before action was taken. Please refer to our Code of Conduct for more information.


    Comments have been turned off. Learn more