Overview
- Watch for red flags such as unusually slow speeds, frequent disconnections, or router activity lights blinking when no devices should be online.
- Run free tools like Fing, WiFi Analyzer, Who’s on My WiFi, or F‑Secure Router Checker to see live lists of connected devices with names and IP/MAC details.
- Sign in to your router’s admin page (commonly 192.168.1.1 or 192.168.0.1) to review connected clients and block unknown hardware, with some ISP portals such as Telmex or Izzi offering built‑in controls.
- Strengthen security by changing to a strong password, enabling WPA2/WPA3, updating firmware, disabling WPS, and using a guest network or less revealing SSID.
- For legitimate sharing without exposing the password, use built‑in QR or password‑share features on Android 10+ or recent iOS, and avoid relying on WPS one‑touch pairing due to known vulnerabilities.