RTL8821CU Onboard WIFI

**Sauerland** · 09-Mar-2021, 14:01

Oops my failure, kernel 5.11 is not installed.........

So I am waiting but maybe this will work:

Code:

mkdir  /lib/modules/5.10.16-1-default/updates

Code:

cp /lib/modules/5.11.2-1-default/updates/8821cu.ko /lib/modules/5.10.16-1-default/updates/8821cu.ko

**suntzu243** · 09-Mar-2021, 14:10

Originally Posted by Sauerland

Oops my failure, kernel 5.11 is not installed.........

So I am waiting but maybe this will work:

Code:

mkdir  /lib/modules/5.10.16-1-default/updates

Code:

cp /lib/modules/5.11.2-1-default/updates/8821cu.ko /lib/modules/5.10.16-1-default/updates/8821cu.ko

Both of these completed without error. Restart?

**suntzu243** · 09-Mar-2021, 14:31

I restarted anyway. Still no internet, but maybe that's to be expected.

**Sauerland** · 09-Mar-2021, 15:29

As root:

Code:

modprobe -f 8821cu

Gives that an Output?

Code:

systemctl restart network.service

Code:

ip a

Code:

rfkill list all

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