Hi, I just bought AX11000 router for my Singtel broadband internet. However, the router cannot connect to the Singtel modem. Calling Singtel hotline, and they refer me to TP link customer service, but

Just got the AX11000. I've followed all the steps and cannot seem to get internet connectivity. I've tried several times to no avail. I am using Singtel as my internet provider in Singapore. I want to