- Check if relevant cables are plugged in and connected securely.
- Reboot the router and modem. Unplug them and wait 30 seconds, then plug them back in.
- Check if DNS settings are correct.
- Check if the network settings, wireless settings, and security settings of the router are correct and match the device you are connecting.
- Check if the range extender is causing cellular issues, and disable it from the network settings.
- Switch to another frequency or a different router if issues persist.
