Pst, rdk 03033, rdk 03004 errors

Xfinity absolutely [Edited: "Language"].  The last month i was having a pst error. Internet is fine, one cable box works, x1 box does not.   Spent hours re-running cable to no avail, finally got a new box.  Worked for three weeks and same thing.  Called multiple times and if i hear one more (insert person who is reading a script and probably doesnt own a tv) tell me they are going to send a refresh signal i will have an aneurysm.  Currently the x1 box will go to pst error and sit there for 12-24hrs. Thrn magically it starts working.  Today i turn the tv on, its playing a live channel, i hit guide and i get a message with rdk 03033 error.  How the [Edited: "Language"] is it not connected if its playing a live channel, yet i am unable to do anything like change channel etc.  Xfinity is absolute trash service at a <Edited: Profanity> price