I have been seeing slowdowns in some of my network but never thought to consider the switch. I have 3 installed in my setup and the power supply failed on one recently. Otherwise, I've had really good luck with my Linksys/cisco switches. That said, I have noticed that at least recently my wireless is faster than my wired connections. Perhaps I should move them around and see if the problem gets resolved. If so, new switches sounds like a cheap option these days!