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morrownr authored Feb 10, 2025
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Frequently Asked Questions (FAQ)

No. 1

Question: I am having problems with my Alfa AXML or Alfa AXM or Comfast CF-953AX. The wifi is not working. It seems to crash when coming up. What can I do?

Answer: This is a known problem that started in early 2024 around the time kernel 6.7 was released. There have been unsuccessful attempts to fix this problem. It is a strange problem in that it seems that bluetooth is involved. Most adapters with the mt7921au chipset do not have this problem. The 3 adapters listed in the question are the only 3 known to have this problem so it appears that something specific to these 3 adapters is causing the problem. Right now all that can be offered is a workaround.
Expand Down Expand Up @@ -28,7 +30,7 @@ echo "install btusb /bin/false" >> /etc/modprobe.d/local-dontload.conf

reboot or unload btusb

connect the AXML to an USB2 port or a USB2 hub
connect the AXML to a USB2 port or a USB2 hub

Now dmesg should print this:

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```

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No. 2

Question: My 6GHz band shows as disabled when I run `iw list`. I want to be
able to use the 6 GHz band. How can I fix this?

Answer: This may happen with MEDIATEK cards and adapters on Linux 6.7.x or
newer. There has been a lot of work on the WiFi support in Linux over the
last year. We have seen an uptick in WiFi problems as a result. As of kernel
6.12, things seem to be getting better.

A new feature called "CLC (Country Location Control)" must be disabled in the
`mt7921_common` module in order to use the 6 GHz band (for now). Make a file
called `/etc/modprobe.d/mt7921.conf` containing `options mt7921_common disable_clc=1`.

Example:

Open a Terminal

Create the file: $ sudo nano /etc/modprobe.d/mt7921.conf

Add the following to the file: options mt7921_common disable_clc=1

Save the file and reboot.

Source: https://community.frame.work/t/responded-amd-rz616-wifi-card-doesnt-work-with-6ghz-on-kernel-6-7/43226

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No. 3

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