How to Configure Port Mirroring on a Ubiquiti EdgeSwitch Using a Simple Trick

Port mirroring is one of those networking features that sounds simple in theory but can be maddening to actually locate on a Ubiquiti EdgeSwitch. If you've ever opened the modern web GUI looking for a mirroring option and come up empty, you're not imagining things — the feature is tucked away behind the "Legacy Interface" toggle rather than sitting in the main dashboard where you'd expect it. Once you know to make that 'switch', configuring a mirrored port takes just a couple of minutes, but without that knowledge you can spend a frustrating amount of time clicking through menus that simply don't have what you need.

Connected to Wi-Fi But No Internet? How a Simple Cable Inspection and Link Test Solved the Mystery

One of the most common complaints network technicians hear is, "I can connect to the Wi-Fi, but I don't have internet access." While it's tempting to immediately start checking DHCP, DNS, VLANs, or wireless controller settings, the fastest path to the solution often begins with something much simpler: a careful physical inspection. In this troubleshooting video, I demonstrate why following a structured methodology is so important and how taking a few extra minutes to examine the hardware can save hours of unnecessary investigation.

Network Troubleshooting Quickstart

Whether you're dealing with a dropped WiFi connection, a switch that won't pass traffic, or a router that seems fine but isn't, knowing where to start is half the battle. In this fast-paced 90-second breakdown, I walk you through some ideas, layer-by-layer troubleshooting method — avoid guesswork, rebooting everything or blindly repacing equipment and hoping for the best. From the physical cable all the way up to DNS resolution, this video gives you a repeatable framework you can apply every single time your network goes down.

Your Smartphone vs. a 1985 Supercomputer: How a Cray-2 Loses to the Phone in Your Pocket

In 1985, the Cray-2 was the fastest computer on Earth — a liquid-cooled, room-sized beast that cost as much as a small hospital and hummed away at a blistering 1.9 GFLOPS. Fast forward to 2026, and the iPhone 16 Pro in your back pocket casually clears 2,000+ GFLOPS of FP32 compute. That's not a typo — your phone is roughly 1,000 times faster than what NASA and top research labs once fought over allocation time for. The Galaxy S25 Ultra pushes even further, hitting 2,500–3,500+ GFLOPS, making it up to 1,800 times faster than Seymour Cray's masterpiece. The supercomputer that once simulated nuclear tests and weather patterns for entire governments now loses a flat-out compute race to a device you use to scroll memes at breakfast.

Using Wireshark to Analyze PowerShell Test-Connection

If you’ve ever run PowerShell’s `Test-Connection` command and wondered what is actually happening on the network, Wireshark is the perfect tool to answer that question. Test-Connection looks simple from the command line, but does it generate ICMP echo requests, use TCP or UDP to figure out latency, packet timing, routing, and connectivity. In my video, I walk through the exact process of capturing this traffic with Wireshark and using a capture filter to isolate only the packets from the target device, making the analysis much easier to follow.