im pretty sure the router got nothing to do as other devices are connecting its either the wifi adapter is outdated because the windows update requires a bios or drivers update etc
MediaTek MT7921 Wireless Lan Driver for Windows 11 update
People with this card probably experience disconnection and disappearance of wifi emblems on windows 11, and this is a software problem, yet there is only lenovo that has posted the new version of the software: https://support.lenovo.com/ht/fr/downloads/ds552327-mediatek-mt7921-wireless-lan-driver-for-windows-10-version-2004-or-later-thinkpad-l14-gen-2-types-20x5-20x6-l15-gen-2-types-20x7-20x8, why microsoft and other organizations have not done the same?
Windows for home | Windows 11 | Install and upgrade
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Anonymous
2023-09-16T04:59:28+00:00 -
Anonymous
2023-09-16T09:33:03+00:00 If you are using an old router, then after windows updates/driver update it doesn't work properly with the wifi adapter. The other devices connect because they are still compatible with that router. In my case too the router worked fine with my laptop for many months before getting an update, after that it started this error. After changing my router I have not got this error at all. Plus its no harm in trying and replacing it.
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Anonymous
2023-09-16T09:41:24+00:00 this is a solution but you could've went on to the router settings and check for an update if there isn't then yeah get a new router
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Anonymous
2023-11-01T17:37:33+00:00 Me too.
I heard there is a fix, https://rog-forum.asus.com/t5/gaming-network-adaptors/mediatek-wi-fi-6-mt7921-wireless-lan-card-disconnects-solved/td-p/923830
But it's a bit sketchy. It takes me to a MEGA download link.
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Anonymous
2023-11-20T13:46:23+00:00 i am facing frequent disconnection of the device and it is so annoying, tried every troubleshooting methods and updated drivers but nothing solves my problem, since it is an software issue, changing hardware is not the option here, please give me fix, my experience is getting worst with it.