@CrizD11 

Hi, 

The maximum distance between Decos would vary from different situations and 7-8 meters is recommended in order to maintain a stable and fast connection. So 16m might be out of range for the satellite Deco S7.

If you could run an Ethernet cable between Decos, it would be the best choice.

Or are these two locations under the same electric meter or power service panel? Ethernet Backhaul based on powerline adapters would also be a great choice, such as:

main Deco S7---TL-PA8010~~~~TL-PA8010---satellite Deco S7

Thank you very much.

Best regards.