Why wont my auto restart and optimization work?

[Android Central Question]

Hi, recently bought an Samsung Galaxy S10+, and I've been trying for a week now to get Auto Restart and Opt working, but to no avail. I have them set up at 3am(opt) and 3:30am(restart) at MFW. Yet it never works. I've even tried setting it up during the day and it never works either. I've set it up once, just a few minutes ahead of my current time and it restarted, but I've never gotten it to work again. Anyone have any ideas of why this isnt working? Thanks in advance!