Q: AsusPro P5540U - Wifi Working but Shows as Unavailable I installed Ubuntu 20.04 server + GNOME Desktop layered on it, here is the order of my installation

*

*Installed Ubuntu server 20.04.

*During installation, wifi was detected and I connected to Wifi Network.

*Installation completed successfully and I also installed sudo install ubuntu-desktop.

Issue: After desktop installed and was able to boot into the desktop environment, wifi was still connected, but it does not show the WiFi network name nor does it allow me to switch the WiFi network connection.
lspci -v results shows:

Network controller: Intel Corporation Wireless 8265 / 8275 (rev 78)
Subsystem: Intel Corporation Wireless 8265 / 8275
Flags: bus master, fast devsel, latency 0, IRQ 140
Memory at ef200000 (64-bit, non-prefetchable) [size=8K]
Capabilities: 
Kernel driver in use: iwlwifi
Kernel modules: iwlwifi

Looking at the result above, it seems the access denied value on the capabilities line might be the issue, some clarity will be appreciate as to changing the capabilities status.
I am able to browse using the WiFi but I cannot see the WiFi connection or switch, because what you see in the WiFi settings is unavailable
Kindly help with any clues.?
Regards.
For cat /etc/netplan/*.yaml, here is the screenshot of the output below:


A: I suggest that you back up the current yaml file. First, find it's exact name:
ls /etc/netplan/

Next:
sudo mv /etc/netplan/<name_you_found>.yaml /etc/netplan/<name_you_found>.bak

Write a new file:
sudo nano /etc/netplan/01-network-manager-all.yaml

Write the following:
# Let NetworkManager manage all devices on this system
network:
  version: 2
  renderer: NetworkManager

Netplan is very strict about spacing and indentation; proofread carefully twice. Save (Ctrl+o followed by Enter) and exit (Ctrl+x). Follow with:
sudo netplan generate
sudo netplan apply

Reboot. All interfaces should now be available in Network Manager.
