Unable to connect to the internet

Hello,
I have an realtek rtl8187b wireless card built into my toshiba
satellite a210 laptop. I am unable to connect to the internet using my
bthome hub 1.5. Theres nothing wrong with the home hub as i am able to
connect using a different computer wirelessly.

I've tried a system restore, which solved nothing. Tried connecting
with a firewall disabled which agained solved nothing.

The message i get from my computer is:

Connection Unsuccessfull

This computer is conected to BThomeHub-6753 but does not jhave access
to the internet.

a link to diagose the problem which doesnt help.

I'm completly out of ideas and have searched the internet for help for
no avail. I've also reinstalled the driver, tried connecting with no secuirity
on the router.
:
When i click diagnose the problem i get :
the network adapter wireless network connection is not correctly configured to use the ip protocol

thanks for your help