Intel AX211 (CNVi) completely disappears on CachyOS (no Wi-Fi, no Bluetooth)

Issues & Assistance
1

Hello,

I am experiencing a recurring issue with Intel AX211 (CNVi) on CachyOS.

System:

  • Laptop: HP Victus (Intel Raptor Lake)
  • Wi-Fi/BT: Intel AX211 (CNVi)
  • OS: CachyOS (latest)
  • Kernel: linux-cachyos (latest)
  • BIOS: latest from HP

Problem:

  • On CachyOS, the AX211 sometimes completely disappears.
  • No Wi-Fi interface (no wlp*).
  • No Bluetooth device either.
  • NetworkManager shows no Wi-Fi.
  • rfkill shows nothing related to Wi-Fi or Bluetooth.
  • The device is still visible in lspci:
    00:14.3 Network controller: Intel Corporation Raptor Lake PCH CNVi WiFi [8086:51f1]

Reboot does NOT fix the issue most of the time.
Only a full shutdown + power drain (AC unplugged, wait ~60 seconds) restores both Wi-Fi and Bluetooth.

Important comparison:

  • On Windows 11 (same hardware, same BIOS), Wi-Fi and Bluetooth work normally.
  • The problem reappears immediately when booting Linux again.

This looks like a CNVi power-state / ACPI issue where the device is present on PCI
but never initialized by the firmware when booting Linux.

Question:
Is this a known Intel AX211 / CNVi issue on Linux?
Are there any kernel parameters, ACPI workarounds, or iwlwifi options to prevent this? I really tried everything i could, i redownloaded and formatted cachyOS andthe problem still persisted. I have been using CachyOS for around 1 year now and it’s the first time it’s happening. Any help would be really welcome!

Thanks.

2

Is windoze “Fast Startup” disabled?
If not then the OS never shuts down and exhibits behavior in multiboots like this.

3

Indeed this sounds like a fast startup or hibernation issue (thanks Windows). I used CNVi devices in the past (no Windows, only Linux) and it worked flawlessly.

4

I recently bought four Dells. They all came with AX211, and all have been rock solid. I don’t use Windows, so I suspect the suggestions above regarding it are the path to take, rather than messing with CachyOS.

5

I’ve run into a similar issue lately, bought a Precision 3851 and wifi refuses to work, I’ve tried disabling anything that could cause issues in Windows, like fast startup and hibernation, but it just doesn’t work. The weird part is that Bluetooth works without and issue, but not the wifi. If anyone has any suggestions id be thankful