Unsure what reloading is. It may be. Is it part of the install instructions ?
I'd be more inclined to thing that there is a connection issue, whether your leads/plug/sockets, or the aerial; but the rescan is a quick & easy thing to try first and might achieve something.
Give all the plugs a wriggle, and if you have spare leads stored somewhere, try them instead of the one you presently have plugged in.