@wdavis111,
So if you are using the devices in router mode, there always needs to be one node that is considered the 'main' and at the head of your network. This means that if you want all the configuration options offered by Deco, you would need a Deco node in your guest bedroom closet that connects to the wall ports. If there are not enough ethernet ports to use all the wall ports, this is where you would put a cheap switch. You would also need to place your gateway in bridge mode or IP Passthrough Mode so that you do not have two routers and DHCP servers operating on the network.
Recommended Router Mode Setup: ATT Gateway > Main Deco > Network Switch > Wall Ports > Other Decos/Devices
AP Mode Setup: ATT Gateway > Optional Network Switch > Wall Ports > All AP Mode Decos and Other Devices
In AP Mode, the Decos are operating as an extension of your ATT Gateway, meaning that the Gateway is the only device managing the traffic - so all configuration of devices or parental controls must be made using ATTs settings, rather than Decos. See More Details in this FAQ: What’s the difference between Access Point mode and Router mode on the Deco?
Also, you would need the units to all be in AP mode, rather than router mode. Leaving other nodes in Router Mode, will force your deco app to try and configure multiple Deco networks - which is not possible with your network configuration. Lastly, the easiest way to think of the AP mode, is that when they are operating as Access Points, they are still all clients/regular devices when it comes to how they are treated by the