uTorrent closes by itself.

[Jupiter5]

Hello everyone

I downloaded the latest stable version of uTorrent 3.4.3
I noticed that if I leave the program running for several hours without using the PC, after a while utorrent closes by itself. It should not be minimized, but stops just; then defeats the fact that you can leave your PC for hours in order to complete the download.
I checked that the sleep timer is disabled
I checked the settings of the PC do not ever put in standby or in hibernation.

I do not know what to feel.
They welcome suggestions.

thanks