Error message XRE-03046 on 2 tvs

I keep getting error message XRE-03046 on two out of 6 tvs with xfinity boxes.   Three weeks or so ago I spent hours on the phone with Xfinity support restarting the boxes but was still unable to get the error code to go away on these two televisions.  Xfinity technicians were on site on Monday, November 11th.  When they arrived, two out of 6 tvs had errors XRE-03046. They did a thorough check and replaced the signal splitter that was previously in place with a new splitter that is powered or amplified.  Before the technicians left we checked all 6 of my tvs that are on xfinity boxes and all worked.   Two days later the error XRE-03046 error message appeared on the same two tvs when we turned them on.

I really do not want to get on the phone with support because all they do is tell me to unplug and restart the boxes.   I have done that 50 times over the past month.

Has anyone successfully gotten error XRE-03046 to stop and if so what was the solution?