No wifi device detected not even with `ip addr`

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Answer: 1

24 hours ago

This seems to be a common issue but none of the resolutions I found on this forum seems to address my specific experience.

I did fresh install of Ubuntu 21.10 on an ASUS Vivobook (used to be a Windows machine but I replaced the entire Windows partition) but my wifi was not detected. Please see outputs below:

sudo lshw -class network -short

H/W path       Device     Class       Description
=================================================
/0/100/1c.5/0             network     RTL8821CE 802.11ac PCIe Wireless Network Adapter
ip addr

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever

The former suggest there is a wifi adapter while the latter suggest there is not. All the posts I have come across assumes that there is some wlp3s0 or other available in the ip addr call yet I have none such.

Added by: Colleen Bernier

Answer: 2

20 hours ago

Thanks for the comments. Got myself an usb ethernet adapter as suggested by @KGill and installed rtl8821ce-dkms as pointed to by @nobody above. All good after restart. Wifi up and running.

Added by: Darien Mayer

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