NBN Installation

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Level 1c
Hi there i have received the email from tpg to connect the devices. I followed.the instructions for the auto connect and it dis not work the modem lights up everything except internet, and the ncd lights are flashing with powet being the only light that is solis. Please calle this is so frustrating after trying to fix my wifi for more than a month and then being told going on the nbn would fix everything and now its not working PLEASE CALL ME URGENTLY