you have 2 options to connect to the router on the computer.. either wired or wireless-- if you are connecting wirelessly then just ignore "cable isnt connected" --you can change the icons so it doesnt show in CONTROL PANEL>NETWORK CONNECTIONS
If your trying to get on the internet with a wireless connection
.and running WINDOWS,(many problems with LINUX) .and have a wireless router
all set up and configured to broadcast the signal (not hidden) ....
try resetting the router
(disconnect the power to it for a few minutes) next --be sure the wifi switch is enabled on the netbook---TRY IT NOW--if still problems---go to CONTROL PANEL>NETWORK CONNECTIONS--right click oin your wifi
card and choose properties--highlight INTERNET
PROTOCOL and choose properties and be sure "OPTAIN IP ADDRESS AUTOMATICALLY" is checked--Does the laptop
"SEE" the router?
You will need your SSID to logon to the router(internet
follow this is a link to a troubleshooting flow-chart-Do check it outhttp://www.daileyint.com/hmdpc/laptop/wireless.gif
If you continue to have problem..indicate at what point in the flowchart it is getting stuck
If this was helpful, please indicate so, if not -comment back so we can dig further to resolve this