@Longghorn 

Yes, Clients are the devices that connect to the Deco.  If they are not connecting to your Living Room then the Deco system has determined the other Decos are better for the connection.  There are a few ways to fix this.  

1.  Use the Network optimization button to have the Deco re-scan and reorganize the network

2.  Reboot the Deco System.  It will rescan and organize your network 

3.  If your Deco has the feature for Preferred band and Node you can manually add it to the node of choice.