BEFW11S4 v4 - wired devices work, wireless devices cannot connect to the Internet

Greetings,
I have a Linksys BEFW11S4 Wireless, ver 4. I have a PC connected directly to one of the Ethernet ports, and have no problem with that connection. I have a DSL service from Verizon. All devices are running Windows XP.
My wireless Laptop, as well as other desktop with wireless USB adapter cannot access the Internet. It seems that I have a wireless connection between the router and these devices since my Laptop can see the SSID and the wireless network and connect to it. But when I try to launch IE explorer or use AOL, I am not successful.
The frustrating part is that the wireless laptop used to work just few days ago and I haven't changed any set-up or added any hardware. I have tried to re-install the router, and also did few resets...but nothing is working.
Any help would be greatly appreciated.
Thank you,
Elie

Elie,
From one of the wireless computer, wither desktop or laptop, try this to help isolate the issue:
fo to Start>run> type "cmd" then click enter
that would open MS DOS, type: Ping (your router IP address)
For Example, if the router IP address is 192.168.1.1, then type:
ping 192.168.1.1 then click enter
if it does not come back with a time out, then you your PC is connected to the router. If it did time out, then it is the wireless connection.
If so, check the wireless configuration on the router, as of SSID, security if any , etc.. and make sure that the wireless card in each desktop and laptop match those settings. Be aware that SSID is "case sensitive" so it has to match exactly the one in the router.
hope that will help you in troubleshooting the issue

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BEFW11S4 v4 - wired devices work, wireless devices cannot connect to the Internet

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