5GHz WiFi on a native Apple card doesn't work properly

[EliteMacx86]

It doesn't want to connect to 5GHz networks anymore with this kext installed, even tried splitting my 2.4 and 5GHz networks into separate SSIDs

Remove kext. Remove boot args. Provide your 5GHz settings for WiFi from your Router. A picture would be enough. If the WiFi can connect, connect to 5GHz. Press and hold Option Key on your Keyboard and click on WiFi. Provide a screenshot.

 

[ShonP40]

Doesn't seem to want to connect to it anymore


It does see it though

 

[EliteMacx86]

Doesn't seem to want to connect to it anymore
View attachment 5538

It does see it though
View attachment 5539

Turn off Smart Connect and put an SSID name. Also, is there an option to change the channel number?

 

[ShonP40]

Already tried it with smart connect off, didn’t change a thing. It just didn’t want to connect to the network at all (tried different routers as well, it just doesn’t connect on macOS but does connect on Linux).

and yes, I can change channels manually once I turn off smart connect.

 

[ShonP40]

ok this is wired, its not connecting to 5GHz networks at all now. not even on the latest Ubuntu (22.04)

 

[ShonP40]

Is there a possibility that installing that kext overwrote the firmware on the card?

 

[ShonP40]

I saw other people with the same issue just suggesting to buy this card instead: https://www.aliexpress.com/item/1005001553083262.html

 

[EliteMacx86]

Already tried it with smart connect off, didn’t change a thing. It just didn’t want to connect to the network at all (tried different routers as well, it just doesn’t connect on macOS but does connect on Linux).

and yes, I can change channels manually once I turn off smart connect.

ok this is wired, its not connecting to 5GHz networks at all now. not even on the latest Ubuntu (22.04)

Turn off Smart Connect. Set the Channel Width to 80MHz and Channel Number to 155 for 5GHz. Restart the Router.

Remove all the WiFi and BT related kexts. Reset NVRAM twice and then Shut it Down. Turn off PSU, and wait for a min or two to drain the caps. Turn on the PSU and turn on the system. Reset NVRAM twice and then check. Make sure not to boot into any other OS.

Is there a possibility that installing that kext overwrote the firmware on the card?

The kext does load the firmware but it cannot write the firmware to the card unless in DFU mode.

I saw other people with the same issue just suggesting to buy this card instead: https://www.aliexpress.com/item/1005001553083262.html

That's recommended.

 

[ShonP40]

I managed to get it to connect to a 5GHz network again, but getting the same symptoms as before, barely any connection.

 

[ShonP40]

Set the Channel Width to 80MHz and Channel Number to 155 for 5GHz.

Channel 155 isn't available in my country and my routers are already set to 80MHz