Trackaroo Trackmaster

I've had this problem two different times and both times it took me about thirty minutes to figure out how to fix it so I thought I woud write a quick note so if you have this problem you can get everything ready without much hassle.

Before I take the track I go into my split settings and hit locate every time to make sure my TM and external GPS are synced up. The last two track days my phone (before my first session) could not find my GPS even though it saw my GPS in the settings. So if anyone has this problem, the easy fix is to go into the phone's bluetooth settings and unpair and then pair the GPS back up and then you are set!