I have a Mac Pro 2013 where I have replaced AirPort card with a BCM943602CDP (ac and 4.2 bluetooth).
In Catalina, everything works great (wifi, handoff, air drop, unlock with watch) but when I tested with Big Sur on an external SSD (clean install, lastest beta) I can't get the wifi to even turn on. The wifi symbol just have a backslash over it.
I've tried resetting SMC and NVRAM.
If I remove the wifi from network settings and restart I can turn it on and it can find networks, but can't connect. (keeps turning on and off).
In Catalina, everything works great (wifi, handoff, air drop, unlock with watch) but when I tested with Big Sur on an external SSD (clean install, lastest beta) I can't get the wifi to even turn on. The wifi symbol just have a backslash over it.
I've tried resetting SMC and NVRAM.
If I remove the wifi from network settings and restart I can turn it on and it can find networks, but can't connect. (keeps turning on and off).