@Sticko You should replace Ethernet cable between Satellite Deco and Main Deco. Based on your description, after Deco mesh reboot or restart Satellite Deco negotiates gigabit speed over Ethernet...

@Alpaslan Yes, this part is confusing with TP-Link Deco mesh: not only you must have correct Deco model, but it must be of correct hardware to support specific feature. From link I gave you, it must...

@HansJD Never mind me, then. It is common case for Deco mesh not to see device with static IP configured on it. Yours is not that case.

HansJD wrote @Alexandre. Good idea, but I run my total network on DHCP. @HansJD To clarify: do you run network on Main Deco DHCP service, or with separate DHCP server?

HansJD wrote I am pretty much at the end of my ideas and wonder what a cheap camera can do better than the sophisticated and expensive Synology NAS to show up on my Deco network. @HansJD Just a...

@Alpaslan If you want Speed Test from Deco, the only option is to get Deco unit from the list of models supporting this feature, add it to your Deco mesh and make it Main Deco.