I have set up a home network, using a wireless router (to which my Dell PC is directly connected) and a wireless adapter for my other PC.  My other PC recognizes itself & the Dell as part of the network, but when I try to access Dell from the other PC, it says "Network path not found."  When I am on the Dell, and search for the other PC, it is unable to locate it.  I have spent many hours on the phone with Dell, Microsoft, and online chat with Dell, with no help in sight.  Anyone have any ideas?  Thanks