Wireshark is a software tool for Mac/PC, that allows you to analyse and record the data packets the Mac/PC can see travelling around the network, to be able to diagnose network issues.
Wireshark is free, and can be downloaded from here: https://www.wireshark.org/
- When you open Wireshark, you’ll need to select which connection you wish to capture (wired, wireless, Bluetooth etc). Graphs next to each connection display the network traffic on that connection
- Once you’ve selected a network, click the blue Shark Fin (first icon in the toolbar, says “Start Capturing Packets” when you hover over it).
- You will now be capturing network packets. If you have a specific problem when something happens (for example a device comes online, or you try to connect to something), make sure you do this whilst in the middle of capturing.
- Once done, press the red stop button (second icon on the toolbar, says “Stop Capturing Packets” when you hover over it).
- If required, you can then save the capture.