Before I delete anything. This is what I am dealing with right now. Will the solution you explained help fix this problem?

:: KALI SYSTEM (Desktop) ::
:: CODE USED ::

# ifconfig wlan0 down
# macchanger -r wlan0

I get a valid

Current MAC: XX:XX:XX:XX:XX:XX
Permanent MAC: XX:XX:XX:XX:XX:XX
New MAC: XX:XX:XX:XX:XX:XX

# ifconfig wlan0 up

I connect back to my WLAN.

:: WINDOWS SYSTEM (Laptop) ::

I run Wireless Network Watcher
The IP Address of my Desktop (Kali System) shows up = 192.168.x.x which is expected. Since I am on the same LAN.
The problem is that my original Mac Address shows up alongside my IP.
I don't know if it's because once I "# ifconfig wlan0 up" it reverts back to its origianal MAC?

My desktop is not connected with ethernet either. It is only connected with wireless adapter.
Does macchanger only work with monitor mode enabled?

Any help or advice on this is appreciated.