1. Check that your network is connected to your router, modem, and device correctly.
2. Make sure the settings are configured correctly in your router and that your device is connected to the correct network.
3. If necessary, run a speed test to make sure your internet connection is functioning properly.
4. Try restarting your device or router.
5. Make sure that your firewall and antivirus settings are not blocking the connection.
6. Check your device for software updates.
7. Make sure you have the latest firmware installed on your router.