I've recently had problems with an iMac connecting to the internet, and solved it by unplugging the network cable and using Airport. Looking further, I'm wondering if this has been the cause of some of my longstanding Apple TV issues. I'm getting around 10% packet loss for devices connected via a Netgear GS605 5 port Gigabit Switch. For example, our HP printer gets 0 packet loss when connected via the Airport Extreme, and 3% via the switch (on repeated testing). Is this 'normal' for an unmanaged switch, or could it be developing a fault? Could this small amount of packet loss be causing noticeable disruption to users? The set up is: ADSL modem---Airport Extreme---Gigabit switch----iMac/Printer/Apple TV. Note, my Mac Pro is connected directly to the Airport Extreme and never has any issues. Should I be fine buying another unmanaged switch, or would I find the same packet loss? Iy might be that there is an intermittent bad connection causing the noticeable disruptions, and the packet loss is incidental?