AirPort Extreme Card recognizes networks but won't connect - HELP!

hello forumites,
firstly, if this post is similar to one that has already been well-read and widely responded to, i apologize and ask that you respond with the link to said thread.
my issue pertains to an iBook G4 (circa 2004 i believe) running OS X 10.4.11 with an apple-installed AirPort Extreme card (firmware version 405.1). i have never had any problems with the card previously, but in the last week it has quite suddenly ceased to connect to any wireless network i attempt to log on to (both password protected and non). despite the card's sudden inability to connect, it still is able to recognize all the wireless networks in my location (i know this as the networks are still listed in the AirPort status pull-down menu).
in an effort to fix the issue i have:
restarted the card (turned it off and on)
restarted the computer (many, many times)
used the network diagnostics program
used the network setup assistant program
attempted to connect through the system preferences (network)
attempted to connect through internet connect
did a complete erase and install
still nothing.
anyone had a similar problem? anyone find a way to fix it?
thanking you in advance for your brilliance and time,
brad

firstly, tesserax, a tremendous thank you for your help. unfortunately, i tried each step you suggested, but the problem continues.
step 1: i have tried and failed to connect to several different networks in a handful of locations (home, work, friend's house, local coffee shop, etc.).
step 2: i have disabled my own wireless encryption as well as the wireless encryption at a friends house, however, to do so i had to use their ibook, as my own either didn't list the base station in the AirPort utility (although it did list the base station in the AirPort status pull down), or it asked for a password even though the base station wasn't password protected (maybe this may add some insight into the issue?).
step 3: i have connected the computer directly to the modem using an ethernet cable and was able to go online - perhaps this means the problem is related solely to the card.
step 4: i moved the the com.apple.networkConfig.plist file and and the SystemConfiguration folder to the desktop and restarted. unfortunately, OS did NOT rebuild the files. instead, i had to go through the network diagnostics to rebuild them manually. while the files were replaced, the problem was not solved.
step 5: i reset the PRAM, but the problem still exists.
step 6: i reset the PMU, but the problem still exists.
i then tried various combinations of your suggestions, including moving the files out of the preferences folder and then reseting the PRAM and the PMU, but still nothing.
after having attempted every fix i could think of (and that was before posting to this forum) i did a full erase and install of the OS. since that's usually the cure all to whatever ails the computer, it's my assumption that the issue is a physical (hardware) one. that said, if you have any other suggestions i will be more than happy to give them a shot.
thanks again,
brad

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I'm not entirely sure why.
Wired ethernet works fine, and our G4 Desktop's Airport card works fine.
Mine, however, is being a bit wonky.
I shut the computer down for the night about a week ago.
Brought it back up and got the "There was an error joining AirPort network *our SSID*".
Fine, sometimes it does that. I wait and it usually works in a few minutes.
Not this time.
We rebooted our Linksys WAP and our Cisco router, no good.
Shut the iBook down again, reseated the Airport card, fired it back up and paid close attention to the verbose boot this time.
Nothing abnormal, no errors.
Still no wireless connection.
I've tried connecting to other wireless networks around us, and we even defaulted the WAP back to out of box state (i.e. it was wide open and not passworded), but nothing. Every other wireless device in the house (G4 desktop, Dell laptop, and a Toshiba tablet) works just fine.
The computer can SEE wireless networks, but it can't connect to anything.
There have been no major system updates recently, and the only program I've installed in the past 3 MONTHS has been the World of Warcraft Burning Crusade expansion. Nothing else has changed, which is what's stumping me.
I'm starting to wonder if:
A) I'm overlooking something incredibly simple.
B) My airport extreme card is dying.

firstly, tesserax, a tremendous thank you for your help. unfortunately, i tried each step you suggested, but the problem continues.
step 1: i have tried and failed to connect to several different networks in a handful of locations (home, work, friend's house, local coffee shop, etc.).
step 2: i have disabled my own wireless encryption as well as the wireless encryption at a friends house, however, to do so i had to use their ibook, as my own either didn't list the base station in the AirPort utility (although it did list the base station in the AirPort status pull down), or it asked for a password even though the base station wasn't password protected (maybe this may add some insight into the issue?).
step 3: i have connected the computer directly to the modem using an ethernet cable and was able to go online - perhaps this means the problem is related solely to the card.
step 4: i moved the the com.apple.networkConfig.plist file and and the SystemConfiguration folder to the desktop and restarted. unfortunately, OS did NOT rebuild the files. instead, i had to go through the network diagnostics to rebuild them manually. while the files were replaced, the problem was not solved.
step 5: i reset the PRAM, but the problem still exists.
step 6: i reset the PMU, but the problem still exists.
i then tried various combinations of your suggestions, including moving the files out of the preferences folder and then reseting the PRAM and the PMU, but still nothing.
after having attempted every fix i could think of (and that was before posting to this forum) i did a full erase and install of the OS. since that's usually the cure all to whatever ails the computer, it's my assumption that the issue is a physical (hardware) one. that said, if you have any other suggestions i will be more than happy to give them a shot.
thanks again,
brad

Just hooked up airport extreme. works on mac but won't allow phone or iPad on. how do i get them to connect?

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Hi,
If you are using AT&T wireless router to connect the Photosmart to network, you can refer this link for a solution :
http://h10025.www1.hp.com/ewfrf/wc/document?docname=c03112838&tmp_task=solveCategory&cc=us&dlc=en&la...
Hope this helps.
Click "Thumbs up" if this helped you in any way.
Its a pleasure talking to you ! Have a Great Day!
I work for HP, but my comments and recommendations here are my PERSONAL views and NOT on behalf of HP.

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Message was edited by: Bob Timmons

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AirPort Extreme Card recognizes networks but won't connect - HELP!

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