If you suspect someone is using your WiFi without permission, here are some ways to detect unauthorized devices:
1. Check Your Router’s Connected Devices
You can usually see all devices connected to your WiFi through the router’s admin page. Here’s how:
- Find your router’s IP address (often
192.168.0.1or192.168.1.1) in your network settings. - Login to the router’s admin page by typing the IP address into your browser and entering your login credentials.
- Look for a “connected devices” list to view all connected devices. If any look unfamiliar, someone might be using your WiFi.
2. Use Third-Party Tools
Apps like Fing (for Android and iOS), GlassWire (for Windows), or Who Is On My WiFi (for Windows and Mac) can scan your network and show connected devices.
3. Monitor Internet Speed
If your internet feels slower than usual, it might indicate too many devices are connected and using your bandwidth.
4. Enable Device Alerts
Some routers can notify you when new devices connect. You can activate this feature in the router settings or use apps like Fing to set up alerts.
5. Check Data Usage
Review data usage from your ISP. A sudden increase in usage might indicate unauthorized access.
6. Enhance WiFi Security
- Change your WiFi password to a stronger one.
- Enable WPA2 or WPA3 encryption for better security.
- Disable WPS to reduce vulnerability.
- Turn off SSID broadcasting to make your network less visible.
Regularly monitoring your network and tightening security can help protect your WiFi from unauthorized use.
