You must have a packet capture driver installed. WinPcap is the classic requirement, though many users now use Npcap in "WinPcap compatibility mode".
If a specific device is consuming inappropriate content or hogging bandwidth: selfishnet v3.0.0 windows
From a technical standpoint, v3.0.0’s refinement for Windows is notable. Earlier versions were often unstable or required complex command-line inputs. Version 3.0.0 brought a more intuitive graphical interface, improved compatibility with Windows 10 and 11’s network stacks, and more stable ARP spoofing routines. It allows users to see IP addresses, MAC addresses, and real-time bandwidth consumption, transforming an invisible chaos into a manageable dashboard. For a network administrator troubleshooting a congested office, this visibility is invaluable. Selfishnet v3
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