???? Please explain the situation better. Remember that we can't see
your computers from here.
If you have a wireless router connected to a cable/dsl modem and your
laptop is current connected to the router with an ethernet cable, just
unplug the ethernet cable from the laptop and put the desktop there
instead. Then connect to the Internet from your laptop wirelessly.
If this isn't your issue, then please help us help you by reading the
information here before posting back: http://www.dts-l.org/goodpost.htm
Then come back with all pertinent details and someone will help you.