Let’s assume that you have a small office with ten or fifteen computers, and all the machines have different IP addresses. Or, let’s presume that you have a big office and you have more than fifty or ...

When my internet starts crawling, I don't just restart my router and hope for the best. I grab these three network diagnostic tools and systematically work through my network to find the real culprit.

The best way to see which devices are connected to your Wi-Fi (and find out their IP and MAC addresses) is to use the open-source tool Angry IP Scanner. It’s lightweight, runs on Windows, macOS, and ...

Although Angry IP Scanner is a GUI tool, it also has a command-line version that will enable system admins to integrate its capabilities into custom scripts. The results of scans can then be saved to ...