Monitor Network Traffic Windows 11 [patched] -

You download Wireshark. It’s like putting a wiretap directly on your network card. You select your Wi-Fi adapter, click "Start," and suddenly see every packet: DNS queries, ARP requests, a weird SYN packet to an unknown port 4444.

Resource Monitor is live only. The moment you close it, the data vanishes.

Overkill for most.

You click the tab, then "Ethernet" (or Wi-Fi). You see a graph—a blue wave of send/receive activity. It’s spiking hard, even though you’re doing "nothing."

You install GlassWire (free version). Within 2 minutes, you get a timeline graph of your last 24 hours of traffic. You see a massive blue spike at 3:00 AM—that’s your PC waking from sleep to download Windows updates. monitor network traffic windows 11

Start with Windows 11’s built-in tools. If you need evidence for later (e.g., "prove to my ISP that I'm not using 2TB a month"), install GlassWire. For security investigations, learn Wireshark. But never guess—monitor.

End of story.

It was a typical Tuesday. You’re trying to join a Zoom call, but your video is a pixelated mess. Your game pings spike to 300ms. You check your internet plan—1 Gigabit, plenty. The problem isn’t your provider. It’s your PC.