Hi @kumarsanjesh    Do you have inside your home both an NBN-NCD and the TPG-Modem? You will need to unplug all devices plugged into phones sockets, and use just 1x socket to connect the supplied equipment.   Here is a guide to show you how to setup your equipment. You need to do some of the install yourself.   You will need to UNPLUG ALL existing phones/modems, and setup the new NCD + MODEM to the socket. Pay attention to the 4x blue lights on the NCD once completed.   You may check the setup guide that we've created for NBN-FTTC here. https://community.tpg.com.au/t5/Broadband-Internet/NBN-Fibre-to-the-Curb-FTTC-Setup-Guide/m-p/7856#M4024   Regards, David_M ... View more