Cant setup or connect to internet through router

Are you trying to setup Linksys router?
You can run the installation CD to setup Linksys router or you can do it without installation CD also.
Connect the computer to the router with the Ethernet cable.
Open the setup page of the router.
Change the Internet connection settings.
Create a new wireless network.
Connect to the network.

I will suggest you a website that you can try to setup your Linksys wireless router without installation CD.

I think you should reset the router and reconfigure it manually.
Press and hold the reset button on the router for 30 seconds. Release the reset button and wait for 30 seconds.
Power cycle the router and reconfigure it manually.
See Linksys router setup manual

When you resetted your linksys router, chances are, the setup for WAN connection was lost. You can try these steps:

1. Connect the internet directly to your pc. If your pc was able to browse the internet, move on to the next step. If not, you'll have to contact your ISP for the settings of your internet connectivity.
2. Connect back the internet to the WAN port of the router, and connect your pc to the router's LAN port.
3. Open the router's page in a browser (the address usually is 192.168.1.1, username is admin and password is admin)
4. If your router has a setup wizard, run the setup wizard, because it usually clones your pc's mac address.

Hope this helps.

Most Cable Internet Service Providers (ISPs) use Media Access Control (MAC) Address authentication to establish Internet connection for end-users. MAC address is a unique identifier assigned to the network adapter/s of the computer.
To set up your Linksys router to work with a Cable ISP, you have to enable the MAC Clone feature of the router. MAC Cloning is a procedure which enables a router to copy the MAC address of the computer that's registered with the ISP.
To setup a Linksys router with Cable connection you need to perform four steps using the computer that's been registered with the ISP:
i. Verifying Internet Connection
ii. Connecting Devices Together
iii. Checking the Router's LEDs
iv. Configuring a Linksys Router for a Cable Internet Connection


If you need more help come back.Post / thumbs / testimonial are welcome!

1. you need to start the setup again with the setup information from the ISP to configure your router for the new connection.
Contact your ISP and get the router information to set up your router for the new connection.
here are the support pages for the Linksys model you have .
http://homesupport.cisco.com/en-us/wireless/lbc/WRT54G

http://www6.nohold.net/Cisco2/ukp.aspx?pid=80&login=1&app=search&vw=1&articleid=20157&donelr=1

The Linksys WRT54G broadband router is one of the most popular consumer routers there are. Linksys makes configuring your router easy. This article will walk you through the initial setup options for this particular model, but many of the basics we talk about here can be applied to any router setup. Setting up the router consists of four basic steps, such as Testing your Internet connection, connecting your hardware, setting up the connection and power cycling the entire network. Aside, from setup, we'll also describe some security concerns so you can make an educated decision on the administration of your home network.
Test Your Internet Connection First While this seems like something you would not need to be, make sure your Internet connection actually works. If you haven't already, plug the cable modem directly into the back of the computer and make sure you can get onto the internet. You may need to reboot the machine first.
Connect The Modem and Router to the PC Now that we have confirmed the Internet connection works, the next step is to connect the modem to the router and the router to the PC. The modem will attach to the router's Internet Port. You will then attach the router to the PC via any of the four Ethernet ports in the rear. Check the LED lights in the front of the router to confirm all of the connections are properly made. The Power, WLAN, Ethernet Port to PC and the Internet should all be lit.
Configure The Linksys WRT54G Settings With all connection made, you will now need to login to the router via your web browser. Type 192.168.1.1 and hit enter. You should see the login screen. Leave the username blank and type admin as the password and hit enter.
You will now need to configure the router's connection to the Internet. Under the Setup / Basic Setup section, make sure the router is setup to Automatic Configuration - DHCP. This allows the router to receive an IP address from your Internet Service Provider.
Next, go to the MAC Address Clone tab in the same area and enable Mac Address Cloning. This allows the router to clone your PCs MAC address, as the ISP may require this.
Power Cycle the Router and Modem Now that everything is configured, you'll want to power cycle everything. This is done to make sure everything has an IP address from the modem all the way through to the PC. To power cycle, shutdown everything. Unplug the modem and router power source. Shutdown the computer. Plug in the modem and wait for all green lights. Next, plug in the router and wait a few minutes until its lights are also green. Lastly, boot up the PC. You should have an Internet connection.
Change the Linksys WRT54G Router Password You noticed when setting up the router, that there was a default username of nothing and a password of "admin." Be sure to log back into the router once everything is running properly and type in a username and change the password. If you don't, a hacker that sees you have a WRT54G router could login to the router with the default credentials.

You can configure the Linksys to work on your network of computers without the need to go on-line, but if you want to connect to the Internet then you need to sign up with an Internet Service Provider and connect the DSL or cable modem to the Linksys.

Have you already setup one of your computers to connect to the Internet using the wireless router?
If so you can setup the second computer the same way and it also will connect to the internet. There is no need to access the Internet through the other computer.

there are many ways to setup/configure a wireless router. the easiest way for me is to plug your modem to the router, (even though unplugged, there should be a wireless network signal on your device that has a wifi but no internet connection) once connected, plug the modem to the wireless router then reset it, wait a few seconds then you'll get an unsecured network with internet access on it. usually, the only use for the cd is to make you configure it easier like putting a password on it etc.

Have you checked to make sure your internet is connected through your router, and DHCP is turned on. Sounds like you may have internet connection sharring setup through your desktop and it is acting as the dhcp server