Linksys wireless card unable to access

Try resetting the Linksys router.
To reset the Linksys back to the default settings - Press and hold the pinhole RESET button at the back of the router with the power ON for 20 secs. then release the RESET button.
To connect to your wireless router, the router's wireless settings needs to be configured with the SSID, encryption etc. and also the wireless cards in all the laptops/computers needs to be configured with these router's wireless settings. Then the laptops/desktop computers can communicate with your wireless router.
Connect a LAN cable from the Linksys to the LAN port on your computer.
Open a browser and enter the Linksys configuration URL
http://192.168.1.1
The default login = admin
The default PW = admin
You can protect your router by changing the default admin PW (write it down and put it in a safe place)
Go to the wireless configuration and set up the SSID and WPA or WPA2 encryption to protect your wireless network and Internet from unauthorized access.
Now apply these settings to the wireless card in your laptop/computer.
To secure your wireless network from unauthorized access, please click on this link and follow my instructions :- http://www.fixya.com/support/r3559128-wireless_router_security

Try resetting the router and then configure it again.
To reset the Linksys back to the default settings - Press and hold the pinhole RESET button at the back of the router with the power ON for 20 secs. then release the RESET button.
To connect to your wireless router, the router's wireless settings needs to be configured with the SSID, encryption etc. and also the wireless cards in all the laptops/computers needs to be configured with these router's wireless settings. Then the laptops/desktop computers can communicate with your wireless router.
Connect a LAN cable from the Linksys to the LAN port on your computer.
Open a browser and enter the Linksys configuration URL
http://192.168.1.1
The default login = admin
The default PW = admin
You can protect your router by changing the default admin PW (write it down and put it in a safe place)
Go to the wireless configuration and set up the SSID and WPA or WPA2 encryption.
Now apply these settings to the wireless card in your laptop/computer.
To secure your wireless network from unauthorized access, please click on this link and follow my instructions :- http://www.fixya.com/support/r3559128-wireless_router_security

Something is missing

I had a TEW-421 card for a time, and it can not do WPA encryption, only WEP. It's not a driver shortcoming, it's the hardware in the TEW-421 card.

Sorry to tell you it's a dead-end, but at least now you know.

on the linksys website under support.

The Linksys might not be compatible with XP sp3. If it was working before, there is nothing wrong with your Linksys

may be your router needs a firmware upgrade.
check the router's website.

and make sure the router and the wireless card are both using the same 802.11 protocol

The most direct way is to use the software to block by Mac address. Each computers card has a unique network ID that you can look up and then enter into your LinkSys.

Hi Kathy,

Please do this first. go to control panel>add/remove programs, uninstall the Linksys Wireless N adapter.DO NOT UNPLUG THE WIRELESS ADAPTER FROM THE PC. Insert the Linksys wireless N adapter cd(DO NOT RUN THE SET UP). If the set up wizard shows up CLICK exit or cancel.Restart the pc with the disc in and the wireless adapter connected. When the pc boots up you will see the found new hardware wizard. Continue with the wizard, Select No not this time, Select install software automatically. If this is successful, your pc should be able to detect your wireless network

To configure your linksys, access point, we need more information, the ipaddress oif your dlink router and the wireless settings on your dlink router..,

for more informations, check this link http:kb.linksys.com

for more details contact linksys; 18005465797