Dns

A Vevor weather station that can only upload to Weather Underground, a Raspberry Pi 3 pretending to be wunderground.com on its own isolated wifi network, and weewx-interceptor catching the data. Plus the WPA2 handshake that failed nine times out of ten, and the console clock that was an hour fast.

My GPS-disciplined time server dropped off the network and I didn’t find out for 24 days. The cause wasn’t the hardware, and it wasn’t what I assumed twice along the way — it was a permanent DNS record aimed at an address the router was free to hand to somebody else.