Deco X50 Preference Connection Modules
You can use Connection Preference feature to connect Satellite Deco unit to another Deco unit.
Connection preference feature works over WiFi only. If Satellite Deco connected by Ethernet backhaul, it'll decide by itself where to connect over the Ethernet cable.
When you configure Connection Preference, change Auto (Авто) to Off. Then, select to where you want this Satellite Deco connect. It is important to have strong WiFi signal between two Deco units: Satellite Deco where you set Connection Preference and Deco you want Satellite Deco connect to. If they are too far from each other, Satellite Deco may ignore Connection Preference setting.
How your Deco units really connect to each other can be found under "Show Map" Deco page, example:
In this example I forced Office Deco connect to Study Deco, using Connection Preference feature.