Asides from its top-notch features and frequent improvements, it is more popular because it comes pre-installed as one of Google's apps on nearly all Android devices. However, it did resolve my problem, and I hope it will help those with a similar issue.Google Chrome is arguably the most used browser on Android. I cannot explain why this worked when the powerwash did not.

You will be presented with another dialogue confirming that you can proceed with the login but local data will be erased.Click the link 'Forgotten your password?'.You will be presented with a dialogue explaining that you must enter the last valid password used on the device to recover local data.Attempt to login with the new password.Change the password for the user account having the issue using another device.

Ensure the device is connected to your wifi network.

I tried 'power-washing' the device but the problem persisted. The user account having the problem worked on other devices. The device did not have the problem described when I used a different username to login. My device is enrolled in a domain (Google for Education), set to retain local data on the devices. I believe the version was 55 but cannot be sure as I solved my issue before I saw this post and did not have a need to record that information at the time. I am posting this answer despite this difference in case the automatic shutdown is related to the model or version of the Chromebook. In addition, the Chromebook would shutdown after less than a minute after being restarted, only to restart in the same state. I also had a problem with the same signs but on a Chromebook (HP14 G4).

Chrome down