Were would i find the wep key or the wpa for the WUSB54GSC Wireless -G USB Network Adapter/

Reset Belkin WEP key or WPA pass phrase

The WEP or Passphrase encryption key is in the router's wireless settings.
To connect to your wireless router, the router's wireless settings needs to be configured with the SSID, encryption etc. and also the USB wireless card in the laptops/computers needs to be configured with these router's wireless settings. Then the laptops/computers can communicate with your wireless router.

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

Run the Linksys Wireless Network Monitor by double-clicking this icon at the bottom-right corner of your screen. If you don't see the Wireless Network Monitor icon, click here.

Step 2:
Click the Site Survey tab and select the name of your wireless network or SSID, then click Connect. In this example, we used a wireless USB adapter.
NOTE: images may differ depending on the model number of the adapter.
Step 3:
If the software is asking for a WEP key, enter the WEP key on the WEP Key 1 field.
If the software is asking for a WPA-Personal key, enter the WPA key on the Passphrase field

are you sure you are using the right protocol in aqccordance with the information from your provider.. WEP or WPA-PSK?" and the right number to open the gateway?

If the newtwok drops out, sometimes this information is lost and has to be reinserted. If you uninstall linksys and remove the usb and then reinsert it, does it flash and become discovered?
Also make sure you have set up wireless network in XP

If a wrong protocol is inserted Linksys will often report.. Connected to the Network But internet gateway not found... If you get that message then ewither your protocls are incorrect or you have not set up the network correctly. your ISP should be able to guide you through this by phone support.

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You can sometimes retrieve it from the router settings, but barring that, there really is no easy way to get it.

Note that I said easy. If your router is indeed using WEP, you can sniff the packets coming off it with sniffers and once you have enough packets, then you *might* be able to decode the WEP key code. This usually doesn't work out very well though.

WEP or WPA are the types of wireless security. If your wireless network is secured then there will be a password on the network that is called as wireless network key or passphrase ( WEP or WPA key ). PIN number is different than WEP or WPA.
To check the wireless network key ( WEP / WPA) you will need to access the router settings page.
On that page , you will find all the settings of the router.

if the message aquiring ip address comes in computer then it says that the wireless router is not giving an ip address to your computer.... check if any static ip address is assigned to your wireless connection...if so change to "obtain ip address automatically".... right click on wireless network name> goto properties > authentication tab> uncheck "enable IEE athentication"
now try to connect again,still not restart the computer once...... this will resolve the issue.... still if it is not connected then check for the security settings in the router... if your computer is XP/MAC, it may not recognize WPA security type.... change it to WEP type and try to connect again....

if the adapter wont do WPA then yes it is incompatible. You will have to logon to your modem/router and change its wireless settings to WEP

please give details of your router/modem etc if you need help with this

1. Plug in the Microsoft Xbox 360 Wireless Adapter to one of the USB ports on the back of your Xbox 360.
2. Turn on your Xbox 360 and navigate to "My Xbox" and then "System Settings."
3. Go to "Network Settings" and then "Configure Network."
4. Select the appropriate settings for the wireless network you will be connecting to on the "Basic Settings" tab.
5. Enter the name of the SSID of the wireless network you will be connecting to. If the SSID is not broadcast, select "Specify Unlisted Network" and enter in the SSID of the network manually.
6. Enter in the wireless security key (WEP or WPA) so that your Xbox 360 can access the network.
7. Select "Test Xbox Live Connection" back on the "Network Settings" screen to verify that your Xbox 360 is now connected to the wireless network and ready for use.

Should work for either WEP or WPA

The main reason why you have this error message because your computer is not getting a valid IP address from teh wireless network, and the reason why its not getting a valid IP address is the wireless security or sometimes called WEP/WPA kay are not type in to the correct place, If you have a WEP enable on your wireless network you will have two option on the Linksys WLAN monitor where you can type in teh security key, you will see two boxes there when you try to connect to the secured network one says Passohrase and one says WEP key1 and if yuo have a wireless key that has a total of 10 or 26 key character you need to type that on the WEP key1 box leave the passphrase blank...But if it still didn't work you can contact this number for help 1-877-787-8749....