Uptime not correct

I have been having a problem for a little while now with the WP uptime for my computer I turn my computer on at least once a day, but it skips days for some reason. I have noticed instead of having boots for each day it would just combine all of the boots into a few days. I had this going on for about a month with out noticing. Since then I reset my uptime data for the app to see it if would fix the problem, it has not. Before the reset, I would see two days out of the month red with boot entries consisting of several boot times within minutes of one another. I was wondering if any one is having this same problem. See the attached pictures.

Thanks,

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