Lately I have been having problem with my wireless network. I can't even seem to have a decent conversation on iChat anymore. I am currently using a cable modem into my airport extreme. I was told by the cable company that I could buy an adaptor so I could plug the cable modem into the ethernet port so all of my ethernet ports in the house would be able to access the internet once I plugged the ethernet cable into the computer. What kind of adapter do I need to get exactly? If I get this adaptor, could I still setup a wireless connection with my laptop plugging the airport extreme into an ethernet port? Thanks for your help.