Plugging Into A Switch Disables Entire Network?

I have a my HTPC plugged into a 5-port switch along with my Xbox 360, PS3, and U-Verse TV box. Naturally, all 5 ports are being used with line 1 going into my router. There are 3 other computers in my house plugged directly into my router.My problem is that my network ceases to work whenever I plug in the switch. I am neither able to access the internet or view any other computer on my network for file/printer sharing. Running ipconfig shows that I have no LAN/internet connection. If I unplug the switch and plug in the components individually, then everything works normally.I have tried 3 different switches but I am getting the same result. It is very inconvenient to have to manually unplug and plug in my various game consoles and TV box in order to enable them to access the internet.