Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
You could install Wireshark which is a packet sniffer. Let it sniff for a while on another PC and then you can run a report to see what IP had the most traffic.
May also need to install it at the gateway. Depends what part is being overloaded.
Also to remember that Wireshark will bog the network down while its sniffing. So make sure to notify the users that they will see their network connections go down for a period of time if/when you go this route.