I’m having problems getting Fox2 downstairs in my kitchen but it’s fine upstairs in the bedroom.
Our channel 50 is fine in the kitchen and gone upstairs.
In my prior post, I wasn't aware that you are able to receive signals. Based on your description of inconsistent reception on different floors of your house, my first thoughts go to a wiring problem.
Are you connecting your antenna to the homes internal CATV wiring? If yes, there may be interference.
Do you have a lot of cable connectors and combiners/splitters in use? If yes, they cause signal loss. Try to minimize their use.
To isolate the problem, consider purchasing enough RG-6 to reach from your antenna to the house. One hundred feet should cost about $20. One by one, connect the cable directly from the antenna to each tv/converter box combo. Any difference? The problem should go away but if not, some but not all your tv's may have a built in converter The output of the converter box is overloading or somehow confusing the receiver of the tv. In which case you may need to bypass the converter box by directly connecting the RG-6 from the antenna to the tv.