@Shonky I have set of Deco M9 Plus units and Gigabit Internet. Everything that is connected by Ethernet cable through Deco M9 wired to home network will get gigabit speeds, because M9 has gigabit...

@Lucasscolo > Is it possible to connect the DECO X20 router to its satellites via one of the RJ 45 sockets connected to an Ethernet switch Yes, it is possible and recommended if you have that option....

@onkatr This is unusual. To eliminate possibility of Deco mesh misconfiguration, I would suggest switching it to Access Point mode and testing again. In Access Point mode Deco mesh just broadcasts...

@ram.sh >"Router"'s LED is steady green while the "Office" LED is flashing blue... Blinking blue may be a problem. Satellite Deco, just like Main Deco, will have solid green after it is properly...

@bubleponge This is the line that tells Main Deco loses connection, ignore the rest: Mon Aug 9 12:34:07 2021 daemon.notice conn-indicator: Connectivity changed: ONLINE(0x0) -> OFFLINE(0x1) It will be...

@ram.sh Would you please redraw your original picture with Main Deco (one that you named Router) and Office Deco, and repost it, for better understanding. I'd like to see where Main Deco and Office...