Question about Reapeter mode with slate router

Can we put it open and when 1 of the 3 wireless connection I have is available , he will catch it and use it ?

Sorry I cannot understand what you mean by open?

If you connect the repeater to each of the different WiFi SSIDs the Slate will save the network credentials and when one of the saved networks is available it should auto connect.

cool , i will try it this weekend !