Why Do I Keep Getting Logged Out of Desktop

I’m not sure if this is by design or whatever, but if I step away from the desktop I get logged out. Is it when my computer goes to sleep or do we get automatically logged out after XX minutes? Is there a way to change this? I find it highly annoying to have to keep logging in multiple times a day.

Thanks!

I’m having this issue as well. Friday I was logged out and the desktop just crashed several times probably every 15-20mins even while I had open positions