I cannot access one of my computers from another computer which is on the same network. The main computer is not wireless and has all my junk on it that I want my laptop to be able to access (music etc which is all stored on an external hard drive hooked up to the PC) When the PC is turned on, I can see it in my network on my laptop SOMETIMES. Sometimes it only shows up under media devices, where I can see all my music but none of it plays. When I can see the PC under the network under Computers, when I click on it, it says it cannot communicate with it. The PC has access to my laptop and my laptop shows up in the network, I can click on it, access it, etc. Just not vice versa. Also, in sharing settings on the PC, when I turn on file and printer sharing and save changes, when I look at it again, it's off. It wont stay on. Network discovery + file and printer sharing are both turned on on the laptop.