@Clive_A Thanks for your reply. From where I can check the ONT setting? I did the reboot for all the router, but it still not working.

Hi, I can't connect to Malaysia Maxis Fiber PPPoe I have the Tp-link r600vpn connected to a Huawei ONT (HG8240H5), i confirm that the PPPoe Username and Password are correct. Did i set anything...