I have two computers (which need to share files) connected through a switch. I have my internet service some 20 feet away and now I have to connect at least the primary computer to internet. If I use a USB wireless adapter, then the PC recognizes two networks, so I have internet connection with one computer, but no file sharing (i.e. the wired network is disabled). I already tried unplugging the switch and using USB wireless adapter on both computers, but it didn´t work. I have a D-Link DIR 505L which I was planning on using to bring the internet to the switch (does this make any sense?) but have no idea how to do this or even if is is the right solution. This D-Link can be set as: Router/AP, Repeater, Wi Fi Hot Spot.