I reinstalled windows XP and now my Linksys wireless router will not connect to the computer. I reset the router. There are three computers on the network. The only one that can/t connect is the one with the reinstalled os.

Linksys WRT160N Wireless Router installation

Is it re-installation of complete network or you are just trying to add Vista computer to the network?

Is it a complete re-installation then you can reset the router to factory default settings and then try to reconfigure it.

You can run Cisco connect software on the main computer or you can also reinstall it manually,

Read how to reconfigure router manually,

If you trying to connect Wireless Vista computer to the network then you can simply search for the WiFi and then join the wireless network on Windows Vista computer

What is the operating system on your computer?
Are you trying to connect to the wireless network?
on Windows XP computer you will get this message when the computer is not able to connect to the wireless network.
There are 2 reasons. You might have entered incorrect password or your computer is not getting IP address.
Read Limited or no connectivity

If you're connecting to the router via wireless, try preventing windows from controlling the power of the wireless card on your computer.

Device manager > network adapters > "double-click your wireless adapter" > power management

then uncheck the "Allow the computer to turn off this device to save power" option

I hope this helps

Click the link below for proper cable connections in setting up your wireless network.

http://www.microsoft.com/windowsxp/using/networking/setup/wireless.mspx

Then, configure your wireless connection. The following links provides the step by step instructions for each version of Windows:

1. Windows XP. http://www.microsoft.com/resources/documentation/windows/xp/all/proddocs/en-us/wlan_client_configure.mspx?mfr=true

2. Windows Vista. http://windows.microsoft.com/en-US/windows-vista/Setting-up-a-wireless-network

3. Windows 7. http://windows.microsoft.com/en-US/windows7/Setting-up-a-wireless-network

I hope this works for you.

Thanks.

Mongkey

"Understanding explains better..."

Uninstall the usb device in device manager and reboot. It should reinstall it and then ask you for network and password info,

The Linksys configuration URL is http://192.168.1.1 and if you cannot Login or remember the password then you can reset the router back to the factory defaults by -
Power up the Linksys and pressing and holding the pinhole reset button at the back of the Linksys for 30 secs. The router will restart.
Username Login = admin
Password = admin
You can now change the admin password and configure the wireless settings ie SSID, WPA or WPA2 encryption etc.
Don't forget to configure the wireless card in your computer with the router's wireless dettings so the computer can connect to the Linksys.

Make sure you have fresh ip address...
go to command screen: ipconfig /renew

If this doenst work you can static the IP of the Wireless NIC. Make sure the IP you use is on the subnet of the router.
http://ask-leo.com/how_do_i_configure_my_static_ip_address.html

try to have a reformat again or change the settings of your router or try to reinstall the wireless adapter that you have

I experienced a similar problem with a Vista laptop a few weeks ago. There were no apparent problems, so I uninstalled the wireless network adapter from the Windows "device manager" and then let it automatically reinstall the wireless adapter when it rebooted. The local wireless network appeared about 5 minutes after the reboot and has been working ever since.

If that doesn't help, try removing the Linksys software from your computer and try the network adapter remove/reinstall again.