Hi all Sifus here,

I've recently upgraded my maxis fibre stock router TP-link Archer c5v to Asus AX82U.

pppoe username and password has been provided by maxis and internet is working fine on Asus now. The ISP profile in Asus router is MAXIS FIBRE-SPECIAL.
However, I'll still need the voip phone service as my home alarm system is connected to the phone. So I have tried the following method but none of them work.

1.Connecting both TP-link c5v and Asus Ax82U to maxis modem (once Asus router granted access to the internet, c5v doesn't work anymore)

2. Connecting C5v Wan port to Asus Lan 3 as per Asus's setting, (No, the voip phone and internet both doesn't work on C5V )

3.Connecting C5V LAN port to Asus Lan3 (doesnt work)

I have also tried to disable the DHPC in C5V setting, as well as enable the bridge mode. All doesn't work
Any sifu can advise what setting do i need for the phone to work?