@RVE Are you also using the Deco S4R? Is it running the latest firmware? What is the OS version of the phone that you tried to access the Deco? Try with another phone and see how it goes, thanks.

@Sooch Hello, thanks for getting back. If that is the case, we think there might be some limitation on the ISP side, while they don't tell you. Anyway, we will escalate your case to our engineers,...

@ZGH Hello, thanks for asking. May I have the model number of your TP-Link device first? And what do you mean you cannot find the modem? Do you mean you cannot login to its web interface page?

@zingerina Hello, thank you for asking. Can you please verify the network layout again? Is it like below: Layout 1: FTTB modem---DGS-1016A switch---(WAN) VR1600v? And the VR1600v is working as a...

@Leafy2006 Can you please confirm again what is the modem number of the device? Is it Archer C60? If yes, this is a wireless router, not a modem, you may use tplinkwifi.net to login. Here is the...

@FredEx Hi, you are most welcome, and glad to help you. If need any further help, just let us know. Good day.