No Internet acces or only one computer at the time

Hi everybody,
I'm a freelance IT supported and I'm new to Apple. I studied and always worked with PC but with people having more and more Mac at home I had to adapte.
I have a problem at a customer's place which is kinda hard to explain. I'm unable to get Internet access on any devices connected to the WIFI. I tryed sevral setup and the best I can get is "one-device-at-the-time" (the last device that connects to the WIFI). I did screen captures of this setup.
The setup isD-Link DSL-320B Modem (set as DHCP) --> AirPort Extreme (WAN Port) --> wireless devices (iMac, iPad, iPhone, PC, etc.)
Unfortunatly, all the screen captures are in French (I'm in Switzerland) but since it's not literature, I think you can all get what's writen bellow.
mode pont = bridge mode (I think this is how I actualy got one computer to access the web)
I don't understand why the address is 169.254.xx.xx. Shouldn't it get a 192.168.1.x since the D-Link is setup as DHCP (see next screen capt) ? The DNS servers are the ones provided on the ISP info sheet but I don't think it's necessary to put them here, right ?
strangely, the IP range didn't show up when I did the screen capture but it's 192.168.1.2 to 192.168.1.254
I spent two unsuccessful hours last time, i'd realy like to make it right next time so I can actualy send them an invoice and eat more than pastas ;-)
thanks for your help,
Julien

Hiya.. thanks for the lovely screen shots.. this is hard and would be impossible without them.
Something odd is happening... I don't see anything wrong with your setup.
What I do see is dlink doing its dinky toy dlink type stuff.
The AE should have got an IP from the dlink. 192.168.1.x and as you have it bridged it should also pass packets to the dlink which would get IP for the wireless.. nothing wrong in any of that.
It is failing .. and obviously not passing packets correctly on the ethernet link to the Dlink.
DHCP discovery at the very least is failing..
Look at your last screenshot of the dlink setup. Look at the IP handed to the AE. 83.79.62.39
Where did that come from.. it says the AE is a client but the IP is some odd thing.
Now did you happen to set the AE in DMZ of the dlink or did you use some other method to try and force this to work.. at some point it is passing .. perhaps an old public IP to the AE.. which is not correct.
Your tech-it-easy computer plugged into the dlink is getting the correct LAN ip 192.168.1.2 clearly the AE has failed.
I recommend you reset the Dlink to factory and redo the setup.
If the ISP uses PPPoE, then setup the dlink in bridge mode and run the PPPoE client on the AE.. this is the best method.. but PPPoE is seldom used in Europe for whatever reason.
If you use pppoa or ipoa or other dsl authentication then you must keep using the AE in bridge.
Go back to the fundamental problem.. it is not passing packets over ethernet correctly. The AE is gigabit unless it is very old. Dlink I am guessing is 100mbit. There are occasional hitches.. if you have a switch 10/100 drag it along with you and plug it between the dlink and the AE.. and see if it then gets IP correctly. Check with another ethernet cord.. all the stuff you know.
In the AE you can set wan port speed.. but you will need the AE in router mode.. ie it is NATting a public IP, but you will get double NAT.. as a test you can go for that.
Use 100mbps full duplex.
Of course you don't want to double NAT permanently.
If you don't make progress.. post again..
There is a manual way of bridging the AE.. we normally call it wan bypass.
It is complicated so try the above before you do that.
BTW,,, when the one computer does work, check what IP it is getting.. is it 83.79.62.39.. or whatever the public IP. If so the AE is definitely set wrongly in the DMZ of the dlink.

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Go to Solution.

CharlieJ wrote:
The problem is this: When any one of the computers is connected to the internet through the DSL none of the others computers is able to connect – I see the message “Connecting through WAN miniport (PPOE)…”, i.e. I am only able to connect to the internet 1 computer at a time.
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I’ve tried resetting everything – no luck.
I don’t recall having changed any of the settings and am baffled.
Any thoughts as to the problem?
Thanks in advance for any help.
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Okay!
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Message Edited by Brammm on 11-30-2008 04:03 AM

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