Originally Posted by Jdoughs

Assign each laptop different IP's

The router gives out an IP to each computer as they connect, sometimes ours gets confused. Setting specific IP's on each computer to connect with stops it.

On ours a computer would join the network, get assigned an IP, then if it shut off and didn't restart for a week or two, another computer in the house would get it's IP, so when it tried to connect, it wouldnt allow it as that IP was already closed.