UserAgent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.100 Safari/537.36
Platform: 10895.78.0 (Official Build) stable-channel reef-unibuild (electro basking pyro sand snappy alan bigdaddy)

Steps to reproduce the problem:
1. Restart Chromebook
2.  Login with student account
3. Allow system to fully start up

What is the expected behavior?
Student account should connect and open to the Intranet Home Page and prompt for credentials 

What went wrong?
Device goes to black screen, and after about 20 seconds flashes the background and browser window. Repeats 4-5 times before returning to login screen 

Did this work before? N/A 

Chrome version: 69.0.3497.120  Channel: stable
OS Version: 69.0
Flash Version: 31.0.0.108

This is happening on random devices and random accounts. We are able to use other accounts on the devices to login without issue