I am having a problem reestablishing the network connection between my laptop and desktop computers. I have my desktop designated as the server and my printer is connected to this computer. This computer has a wired connection to my wireless/wired broadband router. The laptop is connected wirelessly to the router. When I got my laptop a couple months ago I was able to easily establish a network connection between the two computers and to share the printer. The connection went down several days ago and I cannot seem to reestablish it. Both computers can connect to the Internet, but I cannot connect my laptop to the server so as to use the printer and to allow both computers to access each other's folders. I have no idea how I was able to set up the network in the first place, and cannot figure out how to restore it.