Garmin has new update platform called Garmin Express that I loaded and used to update my 430's. Had to use the Webupdater on the T-15s. Went out back to test and the 430 showed one on point and the other sitting?(switched 430s and same result). Called Garmin and got no answer but found out both the 430s and collars could use webupdater so reloaded new software and problem solved both beep pointed. Don't know if Express has a problem or not but webupdater gets my vote.