I might be wrong but check the newest computer the kids downloaded on for Spyware. Spybot is a good start and is free. What can happen is if the computer is saturated with Spyware {it only takes one download in the wrong site} it will slow any connection down to a crawl. First rule in trouble shooting. Look at the last change made that’s often where the problems lies. Kies like free music download like Blubster {one of the worst sites for downloading this kinda problem}.
I will run spyware tomorrow. They did add some free music download - Lime Something.
Will getting rid of these downloads help with the connections problem?