My computers sign off my network every time they go to sleep - why?

i have a g5 and a macbook networked via airport extreme. network works just fine but recently they decided to sign off my network each time they go to sleep. how do i fix this?

j in seattle wrote:
but recently they decided to sign off my network each time they go to sleep
Could you explain in more detail what you mean by this.
It is normal (and has always been the case) that when you sleep a computer it disconnects itself from the wireless network, as it is turning itself off (basically).
Do the Macs automatically rejoin the wireless network when you "wake" them?

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