Whenever I turn off my computer, my friend's computer (who is on the same network) loses Internet access and grabs a self-assigned IP, and the router stops reporting any computers connected to the network.
I have a Windows 8 custom built PC on my home network. An ethernet cable from my router runs to a switch which provides Internet access to my computer and my roommate's computer, an IBM ThinkCentre.
WiFi still works on my GS3 and his iPod though, as well as our two Xboxes.
This is a consistent problem.
Why is it doing this and how can I fix it?