Hello...
First of all, I think that you are not stating the correct information so that we, the readers, can have a better understanding of what steps you are taking to get a wireless connection on your laptop, which I am assuming has a wireless adapter that has been enabled at the wireless switch located on the laptop.
However before that there are other things to take into consideration because now you are creating a NETWORK between your router and your desktop, correct?
ok consider the following:
1. You cannot simply ttach your Linksys WRTG54 router to your modem and get a connection
2. You have to create what is called an SSID so that your modem and router can communicate with each other and allow the networking connections The SSID has to be the same on each computer you connect to the network, i.e, a desktop and a laptop.
SSID stands for Service Set Identifier. The user picks the SSID, although there is default one on your router setup page, usually. YOu should change to your own unique one.
Here is a google search page list that will help you understand more.
http://www.google.com/search?hl=en&r...ition&ct=title
3. You have to broadcast the SSID in the router set up page. There is an option to not broadcast. Read more.
I hope i didnt misunderstand what you were trying to say or ask.
I hope this helps.