Ring doorbell connects to "incorrect" TP-Link Deco M4 mesh unit

I noticed my newly installed doorbell showing a weak wifi signal (RSSI 73) which surprised me seeing as there is a Deco M4 unit close by. I can't speak to delivery guys because speech (both ways) is very broken.When I check my Deco mesh system for connected devices I can see that the doorbell has connected to my "Main Deco" in the living room which is quite far away and would offer my front door a weak signal.How do I get my doorbell to connect to a different mesh unit?All my other devices (phones, laptops etc) connect to the strongest signal (mesh unit). Only Ring seems incapable of doing that.