Luke Dashjr

Why not just call your employee when the expected report doesn't come in, and complain?

Yes, that was exactly my thought. The primary purpose of Traccar of course is to send location. This gives it an ideal opportunity to receive such a command in the...

@oliv3 >Also, having a server down for a day should just never happen, from a sysadmin point of view. Another possibility is that there's a wifi connection that only allows...

I don't believe so, but I have never heard of this mode. How do I check?

Also, I reproduced the problem without it even turning the display off. One phone had 2 weeks worth of GPS updates to upload, but as soon as I hit "home",...

Bingo, I think. At least two of the affected phones were "optimising" it away. Will hopefully find conclusive results over the next week... Thanks. I don't think there are any...

Nope, doesn't seem to have helped at all. :(

What's the best way to get them?

Android SDK/Studio are non-free, so I'm not really interested in using them, but I have ADB...

I mean they have restrictive EULAs that do not meet the definition of [free software](https://www.gnu.org/philosophy/free-sw.en.html). Gentoo has a dev-util/android-tools package with adb, fastboot, and mkbootimg on their own.