@Esridhar1945 

Hi

Connect your Laptop/Phone/Client device to the host Router directly to verify the Internet status of the host Router and the Wi-Fi functionality of the client device.

Make sure the Extender's lights are normal:

    1. If the signal light is red, please move the Range Extender closer to the host Router to receive a better signal from the host Router.

    2. If only power light is on, the Range Extender has lost connection to the host Router, please double-check the host network settings (mainly Wi-Fi password) on the Range Extender. And then you may reset it and re-configure.