IP Geolocation: How It Works and How Accurate It Is
IP geolocation maps your public IP to an approximate location. Learn how it works, how accurate it really is, and why VPNs, mobile networks, and CGNAT throw it off.
J. Herwick
5 Common Network Bottlenecks and How to Detect Them
Network bottlenecks cap every transfer that crosses them, and the slow link never announces itself. Here are the five most common causes, and the exact test that isolates each one.
How Travel Routers Handle a Hotel Wi-Fi Captive Portal (and Device Limits)
One hotel Wi-Fi captive portal login, every device online. Your travel router hides them all behind a single MAC address. Here is why that works, and the failure modes nobody warns you about.
Link Aggregation for Home Labs: What LACP Actually Does
Link aggregation promises double the bandwidth, but your single file transfer stays exactly as slow. Here’s what LACP really does in a home lab, and what actually speeds up a NAS copy.
Spotting a Rogue Device on a Segmented VLAN
An unfamiliar MAC address showed up on your restricted VLAN. Confirm whether a rogue device actually crossed the boundary before you assume intrusion.
AI Crawlers, robots.txt, and llms.txt: What to Know
AI crawlers visit your site every day to train models and power AI search. This guide explains how robots.txt controls them, what llms.txt really does, and which bots most site owners should allow.
AI Network Management: How AIOps Actually Works in 2026
AI network management uses machine learning to monitor networks, catch anomalies, and automate fixes. Here’s how AIOps actually works, which tools use it, and what still needs a human.
Native Windows VPN to a Home Server Behind CGNAT: The Cloud Relay Method
Behind CGNAT with no public IP? Use Windows’ native VPN client and a cheap cloud VPS relay to reach your home server, no third-party app needed.
Reset Your Router and Lost Internet? Here’s Why
Router reset and now you have no internet? Wi-Fi and the LAN work fine, but WAN provisioning breaks — here’s why, and how to fix it.
Unknown Device on Your Network? How to Identify It (and When to Worry)
Found an unfamiliar device on your Wi-Fi? Here’s how to identify it by MAC vendor, rule out your own gear, and know when to actually worry.