Airport Self Assigned IP/No IP Address and Ethernet Cable not detected

My aiport status keeps changing to:
No IP Address
Self Asigned IP
Conected to the internet
Even when it says connected to the internet, It isn't. Also my iMac won't detect any ethernet cable and I know the cables work because they work on my Macbook. The internet works on everything else in the house wired and wireless. It just won't work on my iMac.
How do I fix this?

Hello mijnnaamisteddy,
The article linked below details some useful information and troubleshooting steps that can help resolve issues with your Airport connection.
Wi-Fi: How to troubleshoot Wi-Fi connectivity
http://support.apple.com/kb/HT4628
Cheers,
Allen

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Ok, Hi. I'll first admit this is my first post so go easy on me!
I just bought a used iBook G3 and it was working fine for a while until about a month ago when all kinds of weird things stared happening. Some of which those problems I solved from reading previous topics from these forums - but anyways, I'll skip all my other problems and get right to my current one.
First off here is the complete specs:
12.1" iBook G3 "dual USB series"
500MHz PPC processor
128+256MB ram = 384MB RAM
15GB hard drive (NOW 160GB HARD DRIVE!)
No Airport Card (NOW ONE HAS BEEN ADDED!)
Multiple OS's - OS9 and 10.1 were included (have original disks)
I also have a set of 10.4 Tiger CD-ROM disks
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Here is what I tried (so you can cross these suggestions off your list! lol)
I've deleted the Airport "ktext" files, etc. (can't remember the actual names of the files, but I've cleared all of those caches and still no luck.)
I've zapped PRAM
I rest NVRAM
I rest the PMU.
I did a Arcive and install of 10.4
...All of which did not help. Again, the card worked in 10.1, but 10.4 is completely blind and can't find it!
Now we are caught up to today. I was having many other odd problems and it all lead to my hard drive probably being bad. So toady I finally bit the bullet and bought a new hard drive from Best Buy. It took me forever to install it, but I did it, and it works! Now I have 160GB (make that only 128GB detected) of space. I partitioned it 4 ways as well:
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"Other OS" - 30GB
"Extra Space 1" - 10GB
"Extra Space 2" - 8GB
xxxxxxxxxxxxxxxx- 128GB Total
So now that I have a new hard drive (that I was told would fix all of my problems because my old one was "bad" I thought I would have it working today, but no. So I put in the brand new drive, partitioned it, booted off my Tiger disk, installed it on the 80GB partition. The install went fine. So I now have 10.4 on the new drive. Seems to be a lot faster then my old drive! I did the combo updater (which I downloaded on my iMac and transfered to a flash drive and loaded on to my iBook) Ran the updater, and now it is running 10.4.11! But then I realized, the Airport card is STILL not detected in Tiger!!! - I thought the new hard drive would solve all my problems as I was staring from scratch, but no, there is still a problem!
I ran the Apple hardware test disk again, full test, and it said my Airport card is still fine. I didn't reinstall 10.1 yet (nor did I want to, I was hoping Tiger would work for what I wanted) but it seems now that I might have to go back and install 10.1 again. I don't know what it will prove - other then it will work again, but I don't want to use 10.1 so I'm not going to bother doing all that again.
Anyways, after looking into this further, I brought up the system boot log (of tiger) and found these lines interesting, and hopefully useful to you guys:
localhost kernel[0]: AirPortFirmware: start Sta f/w download
localhost kernel[0]: AirPortDriver: F/W download failed
localhost kernel[0]: AirPortFirmware: start Sta f/w download
localhost DirectoryService[64]: Lunched version 1.8 (v346)
localhost kernel[0]: AirPortDriver: F/W download failed
it then lists the eithernet address and then ramblers on about other nonsense. If anyone needs the other "stuff" i'll try and save the whole log file and attach it here if anyone needs it.
So could anyone please help? It seems as if i've done everything, and still can not get an answer on why it is doing this, and how to fix it!
Please Help!
Thanks you so much, and sorry for the long yet detailed message!!!
-Scott

Hey, just wanted to post an update to let everyone know what I ended up doing.
Bottom line with the airport card I had is that is was "bad" - well only kind of. I got an email from a guy from a local PC repair shop. He told me he had just gotten one of those cards in and had it for sale for only $25. So I was chatting with this guy and he said it would be alright if I brought my iBook right in his shop, swap the cards and try it before I buy it. So I did so. Very nice guy and we swapped out the cards no problem. Right away it recognized his card and worked! I then downloaded the Airport update and ran it. (remember before, when I tried to update my card, after it restarted it was no longer recognized.) So we did the update with HIS card in and after it restarted, it STILL worked! It also added WPA support as well! We then booted into to Tiger (remember the old card wasn't recognized at all in tiger) and it ALSO worked in Tiger! I also had WPA support right away! So I bought the card and was all happy that it was all working again! I then figured out what the problem was with the old one.
My original card was one of the "original" originals. Then, Apple "changed" the original cards and replaced ones with "128bit" support. (this is all before the extreme cards) I then found out that the newer original cards (the one the guy just sold me) are worth MORE because these are the cards that are compatible with the newer update (128bit WEP, and WPA) The cards looked exactly the same, but the newer card has "128 Bit" printed on the bottom of the card.
SO, it ended up, I was "asking too much" out of the card I had - as the card I had did not support what I was trying for it to do. Where as the newer card I bought IS compatible with the update, and worked like a piece of cake. So all in all, the first card I had isn't "dead" it just wasn't working with what I wanted it to. So I'm going to end up selling it. Hopefully craigslist, but I will get more for it on eBay. so that is what I'm going to do. I'll just make sure to tell people this "story" so they don't try and do the same thing I did. But for someone with an even older laptop, an older OS, or an older router, this card will work just fine for them.
So thats basically it! Looks like I got everything working!
-Scott
Message was edited by: sdschramm

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Dear friends,
We have a strange problem. Ill describe the situation:
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Helpful points will be rewarded,
Kind regards,
Kamran

Hi Mickael,
There are no stupid questions, there are only stupid answers. So I hope my answers are not stupid
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2. Are you sure that your Legacy does not put the file after or during the XI adapter try to catch it?
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