Last Updated on 2021-10-24 by Clay
Recently I reinstall my Linux operating system. In the process of installation, I disconnected to my Wifi device. But before I reinstall it, the device connected to Wifi is very successful.
I think my Wifi device is good-to-work.
So after I configuring the desktop environment, I opened the wifi setting window, saw a conspicuous warning right there:
No Wi-Fi Adapter Found - Make sure you have a Wi-Fi adapter plugged and turned on
Finally, by installing fireware-iwlwifi
, I successfully made the wifi device work.
Solution: Install fireware-iwlwifi
If I use iwconfig
command to check my wireless device.
iwconfig
Output:
enp8s0 no wireless extensions.
lo no wireless extensions.
There are two no wireless extensions.
Then I try to install firmware-iwlwifi
.
sudo apt update
sudo apt install firmware-iwlwifi
sudo modprobe -r iwlwifi
sudo modprobe iwlwifi
Then we check them again:
iwconfig
Output:
enp8s0 no wireless extensions.
lo no wireless extensions.
wlp7s0 IEEE 802.11 ESSID:"Clay"
Mode:Managed Frequency:5.785 GHz Access Point: 3A:50:14:66:E6:26
Bit Rate=433.3 Mb/s Tx-Power=22 dBm
Retry short limit:7 RTS thr:off Fragment thr:off
Power Management:on
Link Quality=70/70 Signal level=-35 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:40 Invalid misc:34 Missed beacon:0
The ESSID:"Clay"
is the configuration by myself, you can ignore it. But if the above commands work, you will find a new interface.
Good Luck.
References
- https://wiki.debian.org/iwlwifi
- https://www.reddit.com/r/debian/comments/d4xz53/how_to_install_wifi_drivers_on_debian/