@stovalldb 

Move both computers to the same room as the main Deco node to see how they perform in a perfect environment. If both get around 50 Mbps but not where you originally had them you can look at either moving the Deco units in a different area. If you still see no difference try using a USB network adapter to see if you get better performance.

@Tony

Thanks you for the suggestion. I will try that!