See your signature, I have same system as you (Skylake i5 6500 HD530). Yesterday my AR9287 is not working in Big Sur, although it worked perfectly in Catalina (both Clover and OpenCore).
Today I make my wifi card work again when I try to change wifi card's id in info.plist in Artheros40 kext. I...
My AR9287 in TPLink 881ND only work when I change id of wifi card in Info.plist, which use with HS80211Family.
I cannot use AR9287 in Big sur, which run perfect in Catalina with Clover and OpenCore.
It only works again when I changed my card’s id in Info.plist in Atheros40 kext. It used with HS80211Family.
I use AR9287. It is working now. I follow modded HS80211Family and Atheros40 kext in insanelymac post. Let’s edit info.plist of Atheros40 of your wifi chip at post:
It worked in my system when change from pci168c,2a to pci168c,2e. I use HS80211Family instead of IO80211Family in Big Sur
follow this post:
Thanks for your post. It gives me a good result when my AR9287 is not working in Big Sur.
I don’t know why in Mojave and Catalina, I just install IO80211Family and AirPortAtheros40 (which has pci168c,2a value in info.plist) in Kext/other, then my wifi worked.
Only when install Big Sur, change...
Sorry but I am also in your situation. Internal speaker had worked. But when I am boot into Windows 10, then Internal speaker is not working. Headphone is OK, but Internal speaker is not. It has icon can be adjust volumn but no sound. Anyone has any idea?
I have same problem with you. Wifi network is random stop connect. In the previous, sometimes it happended.
When I am in 10.14.2, or 10.14.3 before supplement update, everything works fine.
Can anyone solve this problem?