Just purchased 3 pack of the BE63

I have to setup as such:

T-Mobile Gateway -hardwire-> Deco Unit #1 - > hardwire -> Switch -> hardwire -> Deco Unit #2

Anything connected via wifi or hardwired to the switch I get 8 Mbps dwonload.  When I run the test connection from the deco app I get upwards of 300Mbps

I have tried everything in AP and also in rotuer mode, no difference.  I do not have QoS enabled.

Can someone help me get this solved 

Thanks!