@mylumnad Hi, when it is offline, have you checked whether the adapter is still properly detected and ready to use? https://www.tp-link.com/en/support/faq/284/ If possible, please also change another...

@Withered1 Hi, welcome to the community. So are you looking a Deco which fits the Ethernet output from the DSL openreach box? I think you might have a DSL modem installed already at home, and all you...

@qwart9 Hi, welcome to the community. First, it is suggested to connect a laptop directly via the Ethernet cable to Quantum Fiber ONT C5500XK to confirm the internet is getting through. Then We could...

@Oneacer Hi, Straight-through Ethernet cables are the most commonly used. I think it would be fine to create Ethernet Backhaul between two Deco X55s. Thank you very much and best regards.

@Beerlord Hi, it is correct and after switching to AP mode, all 3 Deco units will automatically be put into Access point mode. Best regards.

@DEPUTYDICKK Hi, Thank you very much for your time and patience. Sorry for the delay. I saw you mentioned in the last reply. "I connected my Laptop directly to my modem. I ran 3 tests." Download...