Unknown device on my network: how to identify it fast
Found an unknown device on your WiFi? Identify it from its MAC address, IP, and hostname — and know what to do when the MAC is randomized.
Field notes on MAC addresses, device identification, and what's really on your network.
5 posts on PDF extraction, OCR, and building document pipelines that don't silently drop data.
How to log into your router at 192.168.1.1 or 192.168.0.1
To open your router settings, type 192.168.1.1 or 192.168.0.1 into a browser and sign in. Here is how to find the right address and password.
How to find what device a MAC address belongs to
A MAC address's first half is the manufacturer (OUI). Here's how to look up the vendor, narrow down the device, and why the answer is sometimes 'private'.
Private WiFi Address: why your phone hides its MAC
iPhones and Android phones use a private, randomized WiFi address by default. What that means, why it exists, and how it changes what you see on your network.
Why a MAC address shows blank, zero, or 'unknown'
A blank, all-zero, or 'unknown' MAC address usually means randomization, a virtual interface, or a lookup gap. How to tell which — and what to do.