@ifti12 By "seamless network", do you mean "transparent roaming"? You should obtain that from any combination of Decos. What are the "missing software features" caused by the mix of M4 and M5?

@psantori If you are looking for an outdoor Powerline device, I believe that device will not "extend" the Powerline network of the Deco mesh. You will need two non Deco Powerline devices, and those...

@vnan1829 Is your IPv4 also simply configured as "dynamic"? Does your Deco not obtain an IPv6 address, or does it not distribute addresses to the attached devices? I suggest "SLAAC + RDNSS" for IPV6...

@AlanIde Some ISP require additional settings, not just the PPPOE credentials.

@LoryLory_IT What do you mean by "satellite"? Why do you want to use the Deco as a satellite? If you change the mode of the Deco in AP mode, it will let the main router handle tasks such as assigning...

@packerman How do you manage two accounts? Using two phones, one account on each phone? What is the led status of the "remaining two X25 Deco units"?