Hi Roy! Are you using a Reader or a Smartphone and if a phone which one and OS?. There is a definite issue with Android 14 which seems as carpy Window's Vista, Windows 8 and Windows 11. I had no issues using Libre with Android 11 and 13 but since going to Android 14 I have suffered fairly frequent signal loss and less often low (fortunately I get hypo symptoms) or high alarms. Often rebooting the phone helps but only for a few days! )