I just installed an XE75 system with 3 units (main and 2 remote). Other than a few issues with the app, everything seems to have installed fine. I get great speeds on my phone  - close to my 1/2 gig ISP speed. But, the app shows something strange - it keeps showing very slow speeds on the main screen - anywhere from 0kbs to about 50kbs for both down and up speeds. What do these speeds on the app represent?