1. Check for nearby WiFi networks: Make sure your device is within range of your WiFi network and that the network is broadcasting.
2. Connect to WiFi network: Try connecting to the network again and make sure that you enter the correct password if the network is secured.
3. Update your device’s software: Check to see if your device's operating system and other related software is up to date.
4. Check your router: If your device is connecting to other networks successfully but not yours, try resetting your router.
5. Restart your devices: Try turning off your device and restarting it, as well as rebooting your router.