Hi,

I am trying very hard to connect my S4 to my ISP modem. It is a pure modem and NOT a modem router.

I have also watched the video https://fb.watch/2zCmMDb2VE/ and my ISP is Singtel.

I have used the following settings.

I can create the WiFi. However once it try to test the Internet connection, the light on the S4 will turn red and the following error show.

My Internet is working fine. I have contacted TP Link helpdesk and Live Support. TP Link help desk wanted me to unplug all the network and power cables from the S4 and my ISP modem for 30mins. I have done so but it didn't work.

TP Link live support Carlo tried to help (a big shout out to him) but failed too. He has suggested do a reset on all Deco units which I have done. However the call is drop off due to some technical reasons.

I do not need any username or password from Singtel to connect to the Internet.

Now I am currently connecting my Deco S4 to my Archer C9 and then my Archer C9 connecting to my ISP modem. This work. However this is not what I want.

I want to connect my S4 directly to my ISP modem, removing the C9 from the setup.

Any suggestions?

Thanks.