Hello!
You must be in the same network, launch the advanced ip scanner and enter your range of IP addresses ("IP" button in the toolbar will help you to set the IP-address range of your network)

ok. and when it pings the only num ber that changes is the last ones, like 247 248 249 so on so fourth. or is that all the ip addresses on the thing  

Hello!
Please, create a ticket with detailed info , here:  https://www.advanced-ip-scanner.com/support/ and attach screenshot with the problem of advanced ip scanner . Thank You!

okay, how do i see who all is on that network like there ip addresses

Their IP address must be in the same network as you, then launch the advanced IP scanner and enter your IP address range. You will see the "IP" button on the toolbar and know their network. https://radmin-club.com/advanced-ip-scanner/ip-addresses/