Why does my lockscreen keep turning off?

[AC Question]

After I set a PIN for my lockscreen, my lockscreen does work properly. But after a while, my lockscreen resets to no lockscreen, and I have to re enter a new PIN and start the lockscreen program all over.

 

[Javier P]

Hi, welcome to the forums! Do you have an app called Webroot installed in your phone? There are several reports about this app causing similar problems.