Agree with others, that is normal. Address is per account, not per receiver. We had the same issue, but since no one was at home when we traveled, it did not matter that the home receivers no longer received the local channels. But after our daughter moved back in, she could not watch our home locals if we changed our service address. So I changed the receiver in the RV to a separate dishformyrv pay by the month account. Now I can change the RV service address without affecting the home service address.
There are places we go where OTA is not available due to distance from towers.