No power to dash or ignition

[Pforecast]

I have a 1997 Allegro Star built on the F53 chassis with the 460 engine. I start it up every two weeks. Today when I went to start it there was no power to the dash. I put the key in and turned it. Nothing. No dash lights, no headlights, no horn, no starter...nothing. It's as if there was no battery in the vehicle. I tested the two batteries and they both showed a little over 14 volts. The 12v lights in the vehicle are working. The generator will even start. But nothing happens when I turn the key. I've cleaned all of the connections from the batteries to the solenoids. I can figure it out. I know it must be something simple, but I can't find it. Can anyone help?

[98FPA]

Did you check the ground from battery to the frame? Ground from starter to frame? If those are good probably bad starter or solenoid.

[Pforecast]

All battery connections are good. Put a meter on the positive terminal and the other lead on the frame and it read a little over 14 volts. Just checked the fuses and they all seem to be good. There's just no power to the dash, ignition switch, horn, etc. I'm stumped!