Hi there, I just updated my wife’s laptop and the Wifi stopped working. The system doesn’t seem to recognise the card anymore. Bluetooth still works though. There is no hardware switch. The lshw output:
description: Network controller
product: RTL8821CE 802.11ac PCIe Wireless Network Adapter
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:03:00.0
width: 64 bits
capabilities: pm msi pciexpress cap_list
resources: ioport:3000(size=256) memory:80400000-8040ffff
I did search the web and the forum before posting. Any help is greatly appreciated.
hmmh, Os, Distribution, Version, Kernel would be helpful.
My guess out into the blue: Firmware is missing or if the wifi module is build with DKMS building failed to some “regression”.
I’d suggest booting an older Kernel (if you have it still around) and see if it works.
Thanks for your reply. It’s KDE Neon. The Kernel is 6.2.0-34. My first guess was Firmware too. But then the problem should have been more widespread. Web search doesn’t bring up much. And that update is at least a month old. I rolled back with Timeshift so it’s working at the moment (Kernel 5.19). I’m gonna run the update again, see if a boot with the older kernel works.
Just ran the update, booted into the old Kernel and still no Wifi. Rolling back again since I won’t have access to the laptop for the next two weeks.