I fixed it using this method found in other forums here: Killer wifi 1535. After scouring the dell forums, I was able to find the solution. There was a post about it (somehow can't find it anymore) where I have to install the Killer wifi driver first. Go to Device Manager --> Select Killer Wifi (had a triangle with exclamation mark on it) -> Update Driver Then select something like "select the driver manually" then go through the menus until you find the Killer wifi driver.  There you will see 3 options -- this is where you have to select the "Qualcomm" version and finish install. Windows can detect the hardware after that. Hope this will help someone who's having the issue.
Hello ,I updated to the latest driver for killer wifi and BT after my win 11 install gave me an error. The updated driver from 7-23-2021 havent helped...Anyone else run into this? Thanks, Trevor
Aurora R7, Windows 11, Killer 1535 not working