No I suppose a new network cable might be needed...I thought of this since the wireless connection was working and the "wired" one was not (the desktop-HP). I tried several different ports on the router..no dice.
I am still looking for the wireless configuration software or the option to configure the Realtek software on the HP desktop..where is it? In the device manager? If so...there is no option to "Allow the program to manage your wireless connection." Any ideas here???