Hello,
Next, I will comment on some of the topics you touched on:
On page 3 of this thread, there is my post detailing the steps to follow for installing chris1111's drivers.
This post is numbered by the system. Look in the upper right corner. It should be #29 ( August 4th)
Here is a link to it:
Cham I don't know what it is. Probably a typo. Should be charm instead of cham.
www.tonymacx86.com
So you have Archer T3U Plus, no doubt here, you know exactly what you 've bought.
My adapter is Edimax EW-7811Un (N150).
Both have something in common : a Realtek chip (RTL8812)
And both adapters are listed here :
https://github.com/chris1111/Wireless-USB-Big-Sur-Adapter
Known Working and testing adapter
- Archer T3U Plus
- EDIMAX EW-7811Un (N150)
being supported by the same drivers ( there are two kexts in the .zip archieve ).
For installation on a Monterey system I used the older version (V16) of this .zip archieve.
Not testing/using the latest version (V17), I can not say anything about it.
You know better/best what/how you have done.
But make a note (pencil & paper ) of this process. It could help later.
Many utilities/applications/drivers work well if SIP is disabled.
Some times, even before toggling SIP, a setting in config.plist may require a temporary Disable status.
After installing, the setting should be reverted to Default.
Misc > Security > SecureBootModel String Default
to
Misc > Security > SecureBootModel String Disable
Yes, it is desirable to have SIP enabled.
SIP should be enabled/disabled when booting the system in recovery mode, using Terminal application.
In post #44, I captured the results of some simple commands in a terminal window : csrutil, spctl, kextstat.
You should verify what results you get after running them in both cases ( SIP enabled/disabled )
Well ... it seems you can "clean" Nvram. But, the USB adapter disappears being volatile.
I feel something is wrong with this behaviour.
By the way, for resetting the Nvram I use :
EFI > OC > Drivers > ResetNvramentry.efi
and enabled it in config.plist :
UEFI > Drivers
Check if you use this approach or another one, e.g :
EFI > OC > Tools > CleanNvram.efi
and enable it in config.plist :
Misc > Tools
Just for testing , one may activate both those components and watch the results. Later, keep one of them.
This could be the biggest surprise : not having any kexts regarding USB WiFi drivers in OC folder.
If you do not have them, then your installation process went wrong ( verify your hand-written note(s) ).
In /EFI/OC/Kexts folder you should find two kexts :
RtWlanU.kext
RtWlanU1827.kext
These kexts shoud be automatically activated in config.plist in :
Kernel > Add
1) My adapter is not the same as yours ( Edimax vs TP-Link, both having the Realtek chip, hence the same drivers).
2) Most likely, the installation process ( actual actions, not the blue print ) has some inadvertence.
Or, may be your your installed mac OS/OpenCore have some more restrictive settings preventing a clean installation of the USB WiFi drivers.
Misunderstanding can occur anywhere and anytime.
That's why I tried to give you some sugesstions/hints/answers and make the troubleshooting process more manageable.
When (almost) everything fails, start it over again in a lab environment and document every single step.
Good luck !