On my laptop I run windows 10, and it doesn’t seem to track the uptime correcly. Currently I have an uptime of 15 days, and my longest uptime is 47 days, but I always shutdown my laptop every single day.
Now I do know what windows 10 doesn’t fully shut it down, as it stores the kernel state so it can boot without having to boot the kernel again, so I expect it has to do something with that. I have 53 “reboots” while I have this laptop for over a year now and have shut it down after every single use, so , and I don’t ever put it to “sleep”.
Using client version 2.7