So, #TechQuestion: Do wifi routers ever show false positives for new devices on a network? Last night my XFinity app notified me an iPhone 17 had joined our WiFi network. We do not own an iPhone 17. We use a lengthy, randomly generated password (it’s not WINSLOW), but I reset the router and changed to another password — just to be safe. Just a random blip? Or a nefarious actor in our sleepy town?