I generally have mine on about 26 days, they start to go around that time the most for me. Usually the first thing that happens is I lose connection a couple of times and that’s the sign it’s going. But sometimes they just start going with irregular readings. I’ve had them last up to 36 days working well though and as little as 14 days.
I use Skin Tac when I first apply it and a Q tip with more Skin Tac under the edges to keep down the adhesive that starts to come up. That has worked well without it becoming the mess it used to.
I really love restarts, they usually are more reliable and just plain easier for me. The newer sensor is more erratic for longer and needs more calibrations. I have to test it more over the first few days to see what it’s doing etc. I also love the stockpile I have now as back ups.
For some reason it really varies person to person how long they seem to stay working well.