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Wifi works during install but not after

I'm installing Artix on an old Lenovo 3000 G530 laptop, and every linux distro I've tried fails to see the wifi hardware, or fails to connect if it can see it.  EXCEPT , Artix. Specifically while Im using the install media usb, Im able to connect to wifi. But this fails within the completed installation environment.

Im installing Artix LXQT

Within the Artix install media, I selected Advanced Network Configuration. From here there was an ethernet connection set up (no ethernet cable was ever connected, it just must see the port).

i clicked the plus sign to add a new connection, i selected Wifi as my type. I then typed my SSID. I selected my band (options were Automatic, 5GHz, or 2.4GHz... I selected 2.4 GHz). I clicked on the dropdown for Device, and selected wlan0 (with a long hardware id string). I also went under the Wifi Security tab and selected WPA1/ WPA2/ WPA3 Personal, and put my wifi password.

Saving this successfully connected me to wifi.

I then did the Artix Install calamares installer. No issues.

Upon rebooting and removing the USB stick, I have a working install, which still remembers the Wifi connection I set up. However I have no internet (opening Falkon browser says no internet, sudo pacman -Syu doesnt resolve, etc).

When I view the wifi connection, it has all the info I put in, including that wifi device wlan0 (with the hardware ID).

however if I try to create a new wifi connection (even if I delete my existing saved connections), that Device dropdown menu is now blank and the arrow is greyed out. As if there are no devices.

What could be causing the installer to see my hardware, but not the installed system?

Re: Wifi works during install but not after

Reply #1 –
Maybe missing firmware?

Code: [Select]
pacman -S linux-firmware

Re: Wifi works during install but not after

Reply #2 –
Show the output of the lspci command so that we can understand what wifi adapter you are using.

Re: Wifi works during install but not after

Reply #3 –
When I installed Artix I had to unblock the wifi card with the command rfkill unblock wlan

Take a look here:
Check the driver status
Rfkill caveat
 

Re: Wifi works during install but not after

Reply #4 –
excellent tip