New MacBook with Lion can't connect my WiFi with WEP 128bits

Well, Hi Apple's users !
I've received my brand new Mac Book Pro 2012 last week. It was installed with last version of OSX Lion.
At work, not problem to connect to WiFi crypted in WPA Enterprise.
At home, i absolutly can't connect to my personnal WiFi crypted in WEP 128bits and with a MAC Address filtrer. If I remove the WEP protection, then it works well. If i remove only Mac Address filtrer, it still not work.
I don't receive any error message as if the password was wrong. I've both tested the hexadecimal code and the passphrase... still get the "?" and no connexion.
I've read a lot of probleme exist on this Lion version with WiFi...
I could add that all my other device as : iPad 2, iMac, PC, Smartphone, DS, PS3 and Wii works correctly !
What should i do ?

cyborgjeff wrote:
What should i do ?
Stop using WEP:
http://support.apple.com/kb/HT4199

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Try this first. Turn Off your iPad. Then turn Off (disconnect power cord for 30 seconds or longer) the wireless router & then back On. Now boot your iPad. Hopefully it will see the WiFi.
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