Can't see lan clients

I recently purchased an ERL & AC Lite.

Configured dhcp for local network 192.168.2.x

ETH0 is WAN, ETH 1 & 2 bridged LAN.

So I have on the network wired and wireless devices.   And it seems that if 1 device is wireless and the other is wireless, they can't discover each other.  

So wired I have SmartThings & Philips Hue

Wireless I have Google Home & Samsung Speakers.

So smarthings can find hue

Google Home can't find philips hue

Smartthings can't find samsung speakers.

Google home can however find smartthings.

So at this point I grabbed my old router/wifi combo and connected everything to that.   And everything sees everything.  Ok, great.   So now I turned off the wifi on the combo unit and attached the unifi ac.   Still everything works together.   So process of elimination, the edge router is somehow preventing devices on the lan from talking to each other.  Allows some, not others.

So my questions is why or what needs to be done so devices can properly find each other.   Any help would be appreicated.