How a Network Recovers After a Link Failure
A guy from the cleaning crew backed a floor buffer into a patch panel at a client site I was managing remotely. One second the branch office...
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How a Router Chooses Between Multiple Routes
I once bet a friend a coffee that I could tell him, without looking at his network once, which of his three internet connections a single pi...
Why Your WiFi Works but Websites Do Not
Last month, the TV in my living room was playing a YouTube video without a single hiccup. Meanwhile my laptop, sitting six feet away on the ...
Why Devices Get 169.254 IPs
A client texted me a photo of his laptop's network settings a couple of months back, no context, just the screenshot and one line: ...
What Happens When a Router Loses Its Best Route
I found out the hard way, at 2 AM, why routers even bother keeping a "best route" in the first place. I was doing a late-night ma...
How internet reaches us
Ali is sitting in his house, relaxing and having fun; like any other person these days, he is also busy doomscrolling. The content continues...
How Routers Know Where to Send Your Data
A few months back I was setting up a client's small office — two floors, one ISP router downstairs, and a second router upstairs that a ...
What Happens When a DHCP Lease Expires
Around 3 AM, one of my client's office printers just... vanished. Not physically. Digitally. Every PC on that network suddenly couldn...