[Bugsinrugs]

So I have a problem I am trying to figure out. In my garage I have a three way switch .
In my mud room is another three way switch. In my great room is a four way switch,
.they all control the out side lights.
Unless the switch in the garage is switched to on, the other switches won't turn the light on. With the garage switch up(on) the mud room switch wil turn the lights on and off. The four way switch will turn the lights on and off but only if the mud room switch is up ( on). If the mud room switch turns off the lights the great room switch doesn't work at all. This has me baffled.....I know I should call an electrician but I have to try to figure it out first....the man card thing. Help is appreciated.