Starz Repeated Login

Have Starz service through DirecTV. Approximately every week, I am no longer logged in and must log in again. This occurs through DirecTV stream box AND through Roku AND through direct app to Sony & Samsung TVs. IN other words, ALL devices get signed out. No other services kick me out regularly, only Starz. No, resetting box or deleting & reloading app do not fix issue so please don't even go there. Why can't DirecTV "hold" my Starz login like it does with other premium channels?