Failed in test authentication with ISP

[JingyuanWang]

Hi
I am a new customer and I have ordered a boardband service and it has been actived from 27 April 2020.
I use Tp-link W8960N as the modem Router.
By following the quick setup : I chose ADSL WAN as WAN type at the first step; then the WAN configuration, I type in the PPP username and password as I received; next is wireless config. After these, no connection to Internet, and the light of internet on Modem is off.
Can anybody help me about this? I tried type in the PPP username & password, copy paste from the message I received, I don’t know why.
Pics during my setting,

D73284E2-E415-45BE-A34C-191735BD2EBE.jpeg (48.53 KiB) Viewed 849 times

231B465C-8B8A-434A-ACD4-F4D4B3B8CE79.jpeg (48.55 KiB) Viewed 849 times

F1CB7344-F5E9-4A03-B449-82ECD96733FA.jpeg (19 KiB) Viewed 849 times

[JingyuanWang]

2F24B21E-2D7F-4710-AB44-942B77F7935F.jpeg (133.08 KiB) Viewed 848 times

FBF03ED2-52E2-43CF-A50A-B290FAAC0561.jpeg (182.66 KiB) Viewed 848 times

In the diagnostic page, it failed in authentication.

36C63228-5187-4E0C-8370-11BFC51B9FD4.jpeg (153.35 KiB) Viewed 848 times

[JingyuanWang]

There is a pic not clear, I repost it again. Also the modem lights.

26F1CCFE-F3A5-4FC2-8BF9-548A308C8DE0.jpeg (181.66 KiB) Viewed 848 times

BC05E6F6-67B3-4951-8CA2-A3EAAC280E55.jpeg (59.68 KiB) Viewed 848 times

[KavindaS]

Hi
I am a new customer and I have ordered a boardband service and it has been actived from 27 April 2020.
I use Tp-link W8960N as the modem Router.
By following the quick setup : I chose ADSL WAN as WAN type at the first step; then the WAN configuration, I type in the PPP username and password as I received; next is wireless config. After these, no connection to Internet, and the light of internet on Modem is off.
Can anybody help me about this? I tried type in the PPP username & password, copy paste from the message I received, I don’t know why.
Pics during my setting,

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