@rozexir These are Deco E4 hardware specs: To get faster Internet speeds, you'll need Main Deco with gigabit Ethernet ports, such as: Deco S4, Deco M4, or Deco M5.

@greenawayr For what you described, usual suspect is newly introduced WiFi interference. Also, unlikely but possible, something is with Deco firmware upgrade. What is exact firmware version of your...

@ARK01 You can buy different Deco model, single unit, and add it to your Deco mesh. I would recommend choosing from the following TP-Link Deco models an addition to your Deco S4 mesh: Deco E4, Deco...

@Col1111 >I have further attempted to use the X60 as AP functions only with no change. That is unexpected outcome, but if you are willing to run Deco in AP mode, I have a solution for you that should...

@Guy-L If this is an old house, its electrical wiring might not be up to powerline demands. Worst case Deco units won't be able to use powerline, or it'll be extremely slow and unreliable. Yet,...

@IgorBljahhin Also, if your Deco mesh got into this situation, there is easier way to restore it than reset and reconfiguration. Here is the algorithm: Power off all Deco nodes, starting with...