At home I have a cable modem / router / WiFI providing highspeed internet. The default WiFi that comes with the router caused nothing but grief with iTunes and our Apple TV's so I added my Airport base station to extend the LAN network on the cable modem router.
My problem: My mother-in-law is hardwired dorect to the cable model router and my MacPro is plugged into the Airport which is plugged into the cable router. The mother-in-law complains that my computer 'slows down' her computer. She is my mother-in-law and older so trying to get a better explaination of 'slows down' is next to impossible.
All she does on that system is play Facebook games which is the source of the grief. Her solution is to unplug the Airport base station which 'speeds things up'. My MacPro is running the latest version of the OS with VirusBarrier and I am not running any server or filesharing apps etc. so I can't see how my system is 'slowing' her system.
Before I addded the Airport base station I had my MacPro connected directly and she had the same complaint so I am guessing that the Airport is not part of the problem.
I think she's crazy and am tired of having to come home to my computer and our Wifi network down because her slow Farmville performance. Before I put my foot down on this I want to make sure my machine is actually not part of this problem (if it is actually a problem).
Any ideas / suggesetions to start to troubleshoot this?