I’d be careful about removing by duplicate IP address. The IP address is the value reported by the client, and IP addresses are not unique.
For example, you could easily have a lot of work-at-home users who all have an IP address like 192.168.1.2 , if that’s the default IP on their home wifi network.
Better to count duplicates by computer name, serial number, or (in some cases) MAC address (but even MAC address can be duplicated, if you include virtual VPN adapters)