The best way to see which devices are connected to your Wi-Fi (and find out their IP and MAC addresses) is to use the ...
Easily find out who is connected to your router's Wi-Fi network by accessing the web interface through a browser and looking for options like "Connected Devices" or "Attached Devices." Use GlassWire ...
Install nmap if you don't already have it on your Linux computer. Run "sudo apt-get install nmap" on Ubuntu, or "sudo dnf ...