While it may not solve your issues it certainly solved mine which was remarkably similar to yours.
The Utility app (on android) was completely incapable of finding the PowerGate device while the Stream app was connecting without any issues. The trick was to switch off the 3G connection on the phone and leave only wifi on. With this the Utility app connects to the device in no more than few seconds.
Hope it helps
While the product as such is flawless the update process is terrible and I wasted hours of my life trying to get it to work. It is mildly irritating to see that a reasonably reputable company in its core business is failing to deliver a complete product at the same quality.
