I was using the Forerunner 15 outside (with GPS) with my Garmin footpod connected as well. I needed to finish my walk (yes, I only walk) on my treadmill, so I immediately walked indoors to the treadmill to finish, and I noticed the time was running on the GPS, buy my distance was no longer being registered. The footpod was definitely connected (showing solid on the GPS), and it only moved about .01 of a mile the whole time from entering the house and being on the treadmill. (My treadmill is by two corner windows, but my GPS will never pick up a signal anywhere in the house.) Why wasn't my distance being recorded?