Realtek RTL8852BE Wi-Fi repeatedly crashes on Arch Linux (rtw89 firmware hangs, PCI resets fail)

I am going insane here, please help.

I've been trying to fix a Wi-Fi issue on my Lenovo IdeaPad Gaming 3 (2022), I'm on Arch of course.

My Wi-Fi works normally after booting, but after a random amount of time, anything from a few minutes, sometimes up to two hours it stops working completely.

NetworkManager and the interface becomes unavailable, and iw dev wlo1 link reports Not connected.

Restarting NetworkManager, toggling Wi-Fi, reloading kernel modules, and even resetting the PCIe device all fail and I just reboot.

• Laptop: Lenovo IdeaPad Gaming 3 15ARH7 (2022)
• Wi-Fi: Realtek RTL8852BE PCIe 802.11ax
• Driver: rtw89_8852be (in-kernel)
• Interface: wlo1
• Distribution: Arch Linux, KDE Plasma
• Regular kernel: 7.2.11-arch1-1
• LTS kernel: 6.18.57-2
• Realtek firmware package: linux-firmware-realtek 20260916-1

Some errors:

rtw89_8852be 0000:03:00.0: failed to pre-release fwcmd
rtw89_8852be 0000:03:00.0: firmware failed to ack for leaving ps mode
rtw89_8852be 0000:03:00.0: SER catches error: 0x4000
rtw89_8852be 0000:03:00.0: rtw89: failed to leave lps state
rtw89_8852be 0000:03:00.0: read rf busy swsi
rtw89_8852be 0000:03:00.0: write rf busy swsi
rtw89_8852be 0000:03:00.0: FW does not process h2c registers
rtw89_8852be 0000:03:00.0: timed out to flush pci txch: 0
rtw89_8852be 0000:03:00.0: xtal si not ready(W): offset=90 val=10 mask=10
rtw89_8852be 0000:03:00.0: mac preinit fail, ret: -110
rtw89_8852be 0000:03:00.0: Err: ser L2 re-config timeout




rtw89_8852be 0000:03:00.0: Update probe request failed

wpa_supplicant:

CTRL-EVENT-SCAN-FAILED ret=-110
CTRL-EVENT-SCAN-FAILED ret=-100

NetworkManager:

DEVICE  TYPE  STATE        CONNECTION
wlo1    wifi  unavailable  --

I tried: restarting NetworkManager.

Turning Wi-Fi off and on with nmcli.

Reloading the rtw89 kernel modules.

Tried the LTS Kernel, even tried a different firmware.

Thanks

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