Hello
@eka and
@tsialex! Thanks a lot for your hints!!!
Thanks to you I have understand I have understand how to use the BCM94322MC on the Mac Pros with Monterey.
I have 2, one 2009 4,1 upgrade to 5,1 and one native 5,1.
Both with the BCM94322MC and both tried Martin Lo OC Package and OCLP 0.6.4.
I have done various experiment but only with OCLP I was able to have the BCM94322MC working although wifi was seems to be functional founding networks but was impossible to connect to them.
At that point I was only able to connect to networks without wpa password.
Till yesterday that I have found this topic..
I have try to reinstall from High Sierra and violà, now I can use wifi with wpa passwords with Monterey 12.6.3.
For who eventually would like to check these are the steps:
1) Boot the Mac Pro with an hard drive with High Sierra (check that the wifi is connected to a network and that is working)
2) Here on High Sierra download the OCLP, download with it the Monterey installer and then create a macOS installer on a usb drive. As OCLP will ask you at the end of the creation of the installer, let it to build and install on it the Opencore.
3) Reboot the Pro and holding the ALT/OPTION key choose the just created drive with the Monterey installer
4) Boot the installer, use DISK UTILITY for completely erase the drive you will use for Monterey and proceed to install the system
5) Wait for the Pro for install the system..
6) When the installation will be done, proceed creating your User. Here you can already join your wifi network since the installation is already patched!
7) If you have trouble with the wifi, just continue without it. When you reached the desktop, go on the wifi menu, DO NOT CHOOSE your network, INSTEAD go to System Preferences > Network > Wi-Fi > Advanced > and here under the Wi-Fi Tab click the + and manually put your Network Name and Password.
8) Click OK and the wait around 10/30 seconds.. suddenly the wifi connection will work!
Hope this can help someone.
I know the BCM94360CD is a better option and I'm already have those cards for my Pros but I was curious to try and see if there was a workaround to have the old BCM94322MC working correctly. Cheers!