AirPort works, but IP address is wrong

I can use my AirPort Express for wirelessly playing iTunes. I cannot, however, connect to the internet. When I am connected directly to my modem (wired) I can get on the internet without any problem. The IP address that appears when I'm wired to my modem (using DHCP) is different than the IP address that appears when I try to connect through my AirPort. Any suggestions? I even tried manually putting in the IP address that works when I'm wired, but it didn't work with my AirPort. Please help.
PowerBook G4 Mac OS X (10.4.4)

The following should be your network configuration:
(cable) > [cable port] Comcase cable modem [Ethernet port] > (Ethernet cable) > [Ethernet port] AirPort Express Base Station > (wireless) > PowerBook
Instead of using AirPort Setup Assistant, we'll be using the AirPort Admin Utility instead. First, connect your PB directly, using an Ethernet cable, to the Ethernet port on the AirPort Express Base Station (AX), and then run the AirPort Admin Utility.
The following settings should get you connected wirelessly:
AirPort tab
- Base Station Name: Whatever you want or leave the default name.
- Network Name: Whatever you want or leave the default name.
- Create a closed network (unchecked, for now)
- Channel: Automatic
- Mode: 802.11b/g
- Change Wireless Security: Not enabled (for now)
Internet tab
- Connect Using: Ethernet
- Configure: Using DHCP
- WAN Ethernet Port: Automatic
Network tab
- Distribute IP addresses (checked)
- Share a single IP address (using DHCP and NAT) (selected)
- Using 10.0.1.1 addressing
- Click "Update" to write the new configuration to the AX
- Disconnect the Ethernet cable between the AX & the PB.
- Reconnect the Ethernet cable between the Comcast modem & the PB.
Can you get to the Internet wirelessly now?

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To use Mac OS X 10.4 Tiger, your Macintosh needs:
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See Tom's, (Texas Mac Man), great info on where/how to find/get Tiger...
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My Airport signal strength is great and I connect to the Internet just fine with my Powerbook. But Airport Admin Utility can't find it! Even upon ReScan, nothing. I'm trying to reconfigure my settings to Bridge Mode, which is requested by my iBook for PPPoE. How is it possible for the Airport to be working great but not be found?

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Airport express: wireless works, but internet does not

Hello.
It happened yesterday for no apparent reason: Internet was not working via airport anymore, as it should have normally.
Config: Cable modem to Airport extreme (.g); USB printer attached to base station, base station Ethernet port going to router with Boradband phone and 1 PC attached to it.
4 MAc computers attached to Network (and getting Internet) via Airport.
Internet connection using DHCP, dynamic IP address provided by RoadRunner (Time Warner).
I tested Cable Modem (works), all ethernet cables (good), reset base station and recreated an airport network.
Airpot network works, USB printer is accessible via Airport, but Internet is still off (although Network Configuration in Sys Pref give me a green light and informs me that I am connected to the internet)
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Hello.
We have been having the same problem discussed in this thread earlier, described as follows:
It happened two days ago for no apparent reason:
Internet was not working via Airport Express anymore, as it
should have normally.
Config: Cable modem to Airport Express via a US Robotics router,
2 MAC computers (iMac700 and MacMini) attached to Network (and getting
Internet), the iMac through router and the MacMini via Airport Express.
Internet connection using DHCP, dynamic IP address
provided by RoadRunner (Time Warner).
iMac connected to router is getting Internet just fine; MacMini connected to network via AEX is getting network signal but no Internet. Network diagnostics says it can't tell what's wrong and call ISP. ISP says it's an Apple problem.
I tested Cable Modem (works), all ethernet cables
(good), Airport Express network works, but Internet is still off for MacMini.
I've done a power recycling exercise twice, but still no Internet on the MacMini.
Does anyone have any ideas? Both my son and I are stumped. He's a teenager and is fairly computer savvy. Neither of us has been able to figure this out.
Joe

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I have an interesting problem. I have Verizon DSL. Airport Express works, but Linksys and Netgear wifi routers don't work. Further more, if I disconnect the wifi router and directly connect a MacBook or a Windows notebook they don't work. These devices work if I enter a static IP address though. It is DHCP that doesn't work.
I have been using Verizon DSL for several years, and most recently I was using a Netgear wifi router. A few days ago it lost internet connection. Thinking that the Netgear broke, I bought a new Linksys WRT54GL to replace it. But it didn't work either. I happened to have an Airport Express lying around, so I connected that and surprisingly it worked! Then I wrote down the IP address shown by Airport Utility and typed that IP into Netgear as a static IP address and it worked too. If I remove all wifi equipment and connect a Windows PC or a MacBook directly to the DSL modem then neither works. (Note: my DSL modem doesn't use PPPoE it uses DHCP.)
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Hello petilon. Welcome to the Apple Discussions!
Does anyone know what is going on? How is Airport Express work with Verizon DHCP when nothing else can?
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o Power-up the modem; wait at least 10-15 minutes.
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Airport Express: Internet Access Works But Not "Seen" in Admin. Util. ??

Hi All --
I have a friend with the set-up described below and a seemingly impossible problem. he's asked for my help, and so I'm asking for yours, because frankly the situation just has me stumped. Here goes:
Set-Up & Other Relevant Facts
• DSL connection comes out of the phone jack and goes to a Westell model 6100 modem.
• From there, a short Ethernet cable goes to a Linksys 5-Port Workgroup Switch.
• Two Ethernet cables exit the Linksys Switch: one goes to a PC, and one goes to an Airport Express (AX).
• From the AX, a USB cable goes to a printer (a Brother 1440 laser printer).
• The AX is only about 10 feet from his PowerBook G4 15-inch and he gets a full (four-bar) signal on Airport menulet at the top of the screen.
• When he first set-up his system, the G4 and the Airport did set up the Brother printer (using the Airport Setup Assistant), and the Brother is listed as a printer on the G4's printer window or such.
• Both the G4 and the PC access the web fine via this setup (the G4 wirelessly). In System Preferences > Network, the Airport Network is listed, and it says "Airport is connected to the network Apple Network 6c6c1. You are connected to the Internet via Airport."
Problems
• When the Airport Admin Utility is opened, no Airport Express appears at all, even when "rescan" is repeatedly clicked.
How can this be? How can the PowerBook be connecting wirelessly to the Web through the Airport Express, but the Airport Express no be "seen" by the Airport Admin utility?
• In addition, although web surfing is possible for both PowerBook and PC, neither computer is able to successfully print to the Brother 1440. When he tried printing from the PC, he got the following error messages:
[Status for LPT1]
Result=(02)The printer on this port is not responding.
Status Line=BUSY:H,ACK:H,PE:H,SLCT:H,FALT:H,SLIN:L,HBSY:H,INIT:H,STB:H
Later, it seemed that printing from either computer would start and then stall, flashing a variety of different signals about spooling or "printer busy" and the like, all of which appeared to indicate things just weren't working right..
Anyway, the initial questions we're dealing with are the ones in bold above. The printer issues are probably are related and they can be addressed secondarily.
Any and all help with this will be greatly appreciated. Thanks everyone.
-- JDee

Thanks for your reply- just to re focus my problem- I
have no issue with getting a wireless network "green
light"
Which is the cable modem correctly giving the Express an IP from your ISP's DHCP pool of numbers.
- my issue is I can't stream itunes or get a
usb printer to work off the xpress USB port.
I have checked everything as my posts explain- The
reason I have been looking at this thread is I have
never been able to see the airport in a "scan" per
JDee post.
That is odd and doesn't happen on my wireless network!
Nor have I read in any post that an extra
ip address is necessary
All routers have at least two IP's - an external and an internal. When the router acts as an internal DHCP server it hands out many more IP's. Your Express gets one external IP and the default internal one is set to 10.0.1.1 and the first IP handed out is 10.0.1.2, etc.
However I have seen different subnets- from dncp
server.
Are you talking about the external IP's that your ISP is randomly assigning without your control? Are you talking about the different ways you can configure the internal DHCP numbers? If not there's something else going on. Everything on Douglas internal network should have an IP from the Express DHCP server vs. JDee's internal IP's should all be assigned by the modem/router DHCP server. Once you have everything on the same network numbers AirTunes, printers, and Airport Admin Utility lists just work!
Hey look I really appreciate your help here in
anyway- I'm really stumped. I want to stream music
really bad... and just don't see why it won't work-
its drving me crazy...
I enjoy a good challenge, especially when they are solvable. After trying all the possible software and connection possibilities there's always the chance it's been a hardware failure all along
What IP number does your computer have and what number does the Express have? If it's a router it has two IP's!

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When you see an exclamation point in the Wi-Fi menu, from the menu bar, select
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AirPort Utility doesn't find my AirPort Express but wireless still works

I'm having problems configuring my AirPort Express. My main computer is a desktop running Windows XP and is connected to the internet via a Netgear router. I have the AirPort wired to the same router. I used the AirPort Utility to set up the AirPort originally but now the utility program can't find the AirPort. The wireless is still working as my macbook can still connect to the internet and the green light on the AirPort remains on. The macbook can also use the AirTunes function of iTunes while the desktop cannot. I've updated AirPort Utility to the most recent version without any luck. I assume its more to do with the router but I'm far from a network expert. Any ideas? Thanks.

I'm having this exact same problem. I am using an HP notebook computer running Windows XP. My computer can connect just fine via wireless to the Airport Express. However, the Airport Utility cannot see the Airport Express no matter what I try. I have downloaded all the latest versions of software. I have tried doing a soft reset of the Airport Express. I have tried doing a hard reset of the Airport Express. I have tried resetting Airport Express defaults back to factory settings. I have tried connecting to Airport Express via Ethernet cable attached to my router. I have tried configuring a fixed IP address in the same range as the default IP address settings for the Airport Express. None of this gives me the ability for the Airport Utility to see the Airport Express. Any help please.

Airport connected but internet not working!

My airport will say that it is connected to the internet and will sometimes pull up an IP address, but at my home network it will not pull up an IP address. I can connect to the internet through Safari while the airport has an IP address and it will work for about 30 seconds to a minute. If I shut off the airport then turn it back on, it works again shortly. At home, I have deleted the keychain for the home network and taken the network off of my preferred networks. I then re-added it and entered in the information/passwords. There is still no IP address despite renewing the DHCP lease. HELP! This seems like 2 issues that are both affected by my airport functionality.

After looking at other forums, it seems that other people have this same problem with the message of a "self assigned IP address" but not able to connect.
I have tried the steps of removing the keychain and network and re-adding and still no internet.

TRYING TO SET UP I PAD TO HP AIR PRINTER HAD PROBLEMS WITH ,TALKTALK ROUTER, ASKED AT PC WORLD ADVISED TO BY AIRPORT EXPRESS BUT STILL NO LUCK WILL NOT COMPLETE SET UP. THOUGHT THIS WOULD REPLACE THE ROUTER, I THINK I MAY HAVE BEEN WRONGLY ADVISED

Having problems with air printer to i pad, problem seems to lie with talktalk router, hp solutions managed to get i mac to air printer working but not i pad, adivsed to buy another router as talktalk is not compatiable with bonjour. Went to PC world apple department advised to by airport express. tried setting it up using but will not finalise. i was led to believe this would replace the talktalk router? i feel i have been sold the wrong thing. Any suggestions

This happened to me when I was setting up the wireless router for a friend. The issue is with the Westall modem. You need to go in and setup the "bridge" option on the westell modem. The link below gives directions or you can call bellsouth dsl support (this is how I learned about it).
http://help.bellsouth.net/bellsouth/asp/contentview.asp?isbrowse=true&sprt_cid=3f993409%2Ddff7%2D422...
Good luck
Solution:
Method 1 - Hard Reset
Restore the modem to default settings by pressing the Reset button on the back of the modem and holding it for 3 seconds. (Bridged mode is the default setting for the Westell).
After the modem regains sync, it is in Bridged mode. Do not attempt to surf into the modem as surfing into the modem will enable the Easy Login page and convert the modem from bridged mode to a PPP mode.
Method 2 – Bridged Mode
Access the Westell interface using http://192.168.1.254 or http://launchmodem.
Click on the Broadband DSL Line button.
Click on the Protocols button
Select the radio button to the left of Option 2 (Bridge)
Click the save button. Once the modem has restarted it is in bridge mode.
ALL STEPS COMPLETE

AirPort works, but IP address is wrong

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