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

107 answers

Sort by: Most helpful
Most helpful Newest Oldest
  1. Anonymous
    2022-08-05T19:08:15+00:00

    Was this answer helpful?

    2 people found this answer helpful.
    0 comments
  2. Anonymous
    2022-06-12T03:22:53+00:00

    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.

    Was this answer helpful?

    2 people found this answer helpful.
    0 comments
  3. Anonymous
    2022-05-14T11:34:23+00:00

    Dear Jeremyb777, thank you for your advice. I have Lenovo Ideapad gaming Ryzen7 which has mediatek MT7921 wifi card. If I hadn't read your advice, I would have taken my laptop back to the store, to get another one. Thank you so much, and all best wishes to you. Appreciate your solution.

    Was this answer helpful?

    2 people found this answer helpful.
    0 comments
  4. Anonymous
    2022-05-07T15:41:39+00:00

    unfortunately I couldn't get that driver to download. there was only one website that had that driver and it wouldn't load properly.

    Was this answer helpful?

    2 people found this answer helpful.
    0 comments
  5. Anonymous
    2022-04-15T15:03:23+00:00

    I havent installed any 3rd party antivirus or firewall. I am only using the windows defender. I did a clean boot but the problem still persists. I double checked the driver for the WIFI adapter and found something interesting. When I run the network troubleshooter it shows i am using an old driver. but when I check in device manager it shows I have 3.3.0.479 installed.

    Network adapter Wi-Fi 2 driver information:<br> <br> Description . . . . . . . . . . : MediaTek Wi-Fi 6 MT7921 Wireless LAN Card<br> Manufacturer . . . . . . . . . : MediaTek, Inc.<br> Provider . . . . . . . . . . . : MediaTek, Inc.<br> Version . . . . . . . . . . . : 3.0.1.1203<br> Inf File Name . . . . . . . . . : C:\Windows\INF\oem29.inf<br> Inf File Date . . . . . . . . . : Friday, September 17, 2021 6:31:28 AM<br> Section Name . . . . . . . . . : MTKWLAN_MODE2.ndi<br> Hardware ID . . . . . . . . . . : pci\ven_14c3&dev_7961&subsys_46801a3b<br> Instance Status Flags . . . . . : 0x180200a<br> Device Manager Status Code . . : 0<br> IfType . . . . . . . . . . . . : 71<br> Physical Media Type . . . . . . : 9 <br> ---

    Was this answer helpful?

    1 person found this answer helpful.
    0 comments