Airport has "self assigned ip", no connection to internet but network ok

This is weird... the internet connection was working OK on my G5 desktop yesterday, today it doesn't... my work computer I brought home connected fine a few days ago but now it doesn't, the MacBook Pro I am writing this question with is working fine (hope it holds on to the connection!), our 2 iPhones are connected too. In the network settings for airport it says "self assigned ip address". Thanks in advance for any tips to correct this issue. Is this a glitch in the latest system update?

I solved my problem by reinstalling 10.5.5 and not doing the updates to 10.5.7. I don't know for sure if it is the update to 10.5.7 or the airport updates that caused my problem.
I out my old drive back in my Macbook and I had wireless again. So I out my new drive in and did the reinstall and now it works. There is a conflict with either the 10.5.7 update or the Airport update.
APPLE REALLY NEES TO FIX THESE ISSUES. you can read about them all over the internet. Many have just updated to 5.7 and then they have a problem.
So archiving and reinstalling 5.5 solved my problem. My old drive has 5.6 and it works. If had a copy of 5.6 I would have used that.
I will try doing another update to 5.7 and see if it still works. If that works I will update the airport.

Similar Messages

Airport self-assigned IP not connected to internet

Hi, Could someone please help with my problem - I have been hacking away at this for 2 nights with no success. I have 3 computers trying to connect to the internet using an Airport Extreme.
-AirPort Extreme is set up and not reporting any problems
-my MacBook Pro (10.6.6) is wirelessly connecting fine
-my MacBook (10.5.8) used to wirelessly connect fine, but since a reboot of the AirPort Extreme on the weekend it has not connected. AirPort is On with message "AirPort has a self-assigned IP address and may not be able to connect to the internet". There is an IP address of 169.254.122.47
-my G5 (10.5.?) is also showing a self-assigned IP when connecting wirelessly
I have rebooted modem and AirPort Extreme, changed passwords on the wireless network, updated AirPort Utility, connected via ethernet (works fine)
Getting desperate - any help much appreciated

try the suggestions by Tesserax and *Bob Timmons* in [this|http://discussions.apple.com/thread.jspa?messageID=12983661&#12983661] thread.
JGG

Airport has self-assigned IP address, authentication step fails

I am a computing consultant at a Pennsylvania university and am trying to configure the airport service on a 15" MacBook Pro (pre-unibody style ~2007) running 10.6.5.
We are trying to connect to a WPA2 Enterprise wireless network that requires username and password authentication before assigning an IP address. We configure Macs all the time here and they all work very well, in fact my own personal Macs haven't ever given me trouble. But the machine I'm working on at the moment just cannot obtain a correct IP address. We know for sure this is not a network or user account credential problem. It must be on the client computer side.
I have tried removing all old user profiles and certificates from the Keychain (our network grants a certificate automatically for new connections), I deleted preference files from the /Library/Preferences/SystemConfiguration folder, I have removed the Airport service from Network Connections, rebooted the machine and performed 3 PRAM resets just for good measure, re-added the Airport service and tried a fresh configuration. I also created and entirely different user account and tried configuring. The only thing I have not tried is reinstalling the OS which I'm really trying to avoid because I'd like to learn what is actually causing this problem. None of the above attempts have been successful.
Has anyone encountered this before in an enterprise environment? Does anyone have any ideas that I should try?
Thanks in advance!

Something like one year ago or so, i had to reinstall the OS cuz i wasn't able to make the iPhone recognized over usb for the tethering conenction...
only AFTER i found out it was related to the OS booting in 64 bits, not just 32 and using the 64 capability for those programs who required it.
I had to deal with self assigned ip too, while sharing internet conenction from airport through ethernet to another mac, but i dunno if that should help you.

Airport Connects but has Self-Assigned IP address and no internet

All right Apple this is some Bull#@$% I own 3 Apple units One is a MacBook Pro, one is a Macbook and the other is a G5 Dual processor tower. The MacBook and Tower are using OS X 10.5.5 and the MacBook Pro has OS X 10.4.11. Ok here is my problem all of a sudden all 3 units that had been connecting to the same wireless router for the past year started saying (AirPort has a self-assigned IP address and may not be able to connect to the internet) Apple Care suggested replacing the router well I did that and hello I have the same message. Its connecting but not going to the internet. Under network status I have green lights for Airport and Airport settings a yellow light for network settings and red lights for ISP, Internet and Server. I have this problem with both MacBooks both at the library, my friends house and my neighbors house thats 4 different wireless networks that do the same dang thing. I need help!!

I have also encountered this problem and I have been researching it all over the internet all evening and trying everything I could find a suggestion for. Here's what I have: Two G4 Powerbooks, one is a 550MHz 15" Powerbook, the other is a 1.5 GHz 17" Powerbook, they are both running 10.4.11 with all the updates that Software Update has to offer, the 17" is connecting via built in Airport Extreme card, the 15" is connecting via Sonnets Aria Extreme PC card. I have AT&T DSL and I'm using the 2Wire modem/router they provided me with. Neither of the Powerbooks can connect wirelessly to the internet. Furthermore, they cannot even ping the wireless router. 4 days ago, both were connecting without any trouble (and had been able to reliably every day since the beginning of August when I hooked everything up). I have made no changes to my router's settings over the weekend. Nor had I made any changes to the Powerbooks' settings during that time. It just stopped working. If I wire one or both of them to the router with ethernet cables, connection works fine. My Desktop G4 which is normally wired into the router via ethernet, connects fine so I know my internet service is available.
So far, I've restarted both machines numerous times, restarted the router numerous times. Reset the WEP password. Changed the wireless security to WPA. Changed it back to WEP. Trashed the airport plist. deleted every wireless network entry in Keychain. Disabled DHCP and assigned IP numbers manually. Changed the wireless channel (I've tried 1, 6, and 11 with and without interference robustness).
I've been reading posts about this issue on half a dozen web forums (dating back to as early as June 2004). It appears to affect a variety of routers (2Wire, Netgear, Linksys), a variety of machines (Powerbooks, iBooks, MacBookPros, iMacs) a variety of OSes (10.3, 10.4, 10.5).
This thing is really getting me down. Anybody have any other ideas?

HT3466 Airport has self assigned IP address 169.254.153.51 and will not be able to connect to the Internet

Cannot connect to internet wirelessly because I get the message "AirPort has the self-assigned IP address 169.254.153.51 and will not be able to connect to the Internet."

I would recommend that you do the following as a minimum:
Power-down the modem, AirPort base station, and computer(s).
Disconnect the AirPort base station from the Internet broadband modem.
While all of the devices are powered-down, perform a "factory default" reset on the base station. This will get it back to its "out-of-the-box" configuration and make setting it up much easier, especially if you use the "Assist me" process within the AirPort Utility. (ref: Resetting an AirPort Base Station or Time Capsule)
After the base station resets, go ahead and power it back down.
Reconnect the AirPort base station to the Internet broadband modem. For the Extreme and Time Capsule, be sure to connect the cable to the base station's WAN (circle-of-dots) port.
Power-up the modem; wait at least 10-15 minutes to allow it adequate time to initialize.
Power-up the AirPort base station; wait at least 5-10 minutes. Note: The AirPort's status light may continue to flash amber after it has intialized. That is because, there may be some additional configuration items necessary, like setting up wireless security, before the overall setup is completed to get a green status.
Power-up your computer(s).
In this basic configuration, the AirPort base station will broadcast an unsecured wireless network with a Network Name (SSID) of Apple Network NNNNNN. Network clients, connected to the base station either by wire or wireless, should now be able to access the Internet through the ISP's modem. Once Internet connectivity has been verified, you can use the AirPort Utility to configure the base station for wireless security and any other desired options. Please post back your results.

"Self Assigned IP Address" - connected, no internet access

I have a Netgear WGT624 v2 wireless router that is hard wired to one iMac while other laptops have wireless access to it. This set-up has been working fine for awhile - but now the laptops are saying that they are connected via the router, but they've created "self assigned IP addresses."
I called Netgear tech support and they had no answers, all they would do was make sure that the laptops were able to find the router, which they can, they just can't connect. Why are they creating their own IP addresses?
Is there a solution to this problem? What causes it?

Check your setup in the router for wireless clients. Log on to it and make sure that DHCP is enabled if you use it and you are in infrastructure mode ( wired/wireless combo ). Also, if the clients are B or G mode, make sure the router is set correctly to that mode or mixed. If the IP addresses are 169.254.xxx.xxx then they aren't really getting an address ( this may only happen in Windows, don't remember). If you don't use MAC address filtering for security, a blank list could have been turned on........ anyways, go through all your router configurations for wireless and make sure they are the same or close to the settings for the wired Mac that works. Probably just a checkmark somewhere that isn't supposed to be. Has anyone been in there messing with it? Good luck.
Michael
MBP 2.16 & 20" iMac Core Duo Mac OS X (10.4.5) Large Windows network & Canon DSLRs

Self-assigned IP****cannot connect to university wireless network

After i installed snow leopard I cannot connect properly to my university network. It says that a self assigned IP and cannot connect to the internet.
I have tried many things but nothing seems to change this problem
I need to be able to connect to the internet at school.

I have the same problem with the Exchange server at my work. Once I loaded Snow Leopard, no access. I can get on my Time Machine at home fine and can even access the open WAP at work, but since Snow Leopard access to the Exchange server is gone. The hype for Snow Leopard says easier access to Exchange services but I can't find any info on what that means anywhere. Anybody find the Exchange info?

Connected to Internet, but Network Magic is Not

Hi, I recently got a linksys wireless G router WRT54GS2 and it came with Netmagic. The first time I used it everything was working fine, but now (about 2 hours later) NM cannot connect to the internet, and none of the repairs fix it. It's strange because I can connect to the internet and I'm writing this message using the router. The version of NetMagic I have is 5.1.9055.0

Axelgrind wrote:
I am running Windows Vista Basic
I have DSL
Using a wired connection through the router
Network Magic is not being blocked by a firewall
This is my router model
Help will be greatly appreciated.
PS. All my devices can connect to the internet including an Xbox 360 through a wired connection, an iPod touch through wireless, an Acer Aspire One netbook through wireless, and the desktop computer I am currently on with a wired connection to the router. The only problem I am having is that on this computer, Network Magic is saying I'm not connected to the internet, when obviously, I am.
Message Edited by Axelgrind on 07-23-2009 01:14 PM
Hi Axelgrind,
Reboot the computer and see what happens.
thecreator - Running Network Magic version -5.5..9195.0-Pure0 on Windows XP Home Edition SP 3
Running Network Magic version -5.5.9195.0-Pure0 on Wireless Computer with McAfee Personal Firewall Build 11.5.131 Wireless Computer has D-Link DWA-552 connecting to D-Link DIR-655 A3 Router.

My airport says self assigned ip. what does that mean?

My situation is I am able to connect to the wifi at work and everywhere else, but for the last 3 weeks I am not able to connect to the wifi at my house. When I do it says airport has self assigned IP what does that mean ? and how do you fix it ??! I tried everything almost possible.

It means, you had better power-cycle your modem.

My airport says self-assigned ip and won't connect to the wireless internet.

My airport says self-assigned ip and won't connect to the internet. It's set on Using DHCP, and nothing has changed router/internet wise. I tried it with the firewall off as well, but it still doesn't work. The ethernet works, and I tried setting the ip address manually to the same one as the router. It said it connected, but when I tried to load pages, etc. safari said I was not connected to the internet.
I also tried doing system updates and updating the airport utility - still nothing.

Psychoserenity wrote:
I also tried doing system updates and updating the airport utility - still nothing.
Repair permissions and restart your computer. Now try the following........
See KB Articles: http://support.apple.com/kb/HT1401 AirPort troubleshooting guide
http://support.apple.com/kb/HT2712 Using network locations in Mac OS X
============================
System Preferences>Network
Click the Assist Me button.
In the next window that pops up, click the Diagnostic button & do the necessary.
Also, run the Airport Utility app which is located inside the Utilities folder.

Wi-Fi has self-assigned IP address 169.254.9.151 and will not be able to connect to the Internet

In trying to setup my AirPort Extreme, it connects to the Internet on ethernetcables to computer but says it is not on WI-FI. I have configured it with all that I casn think of and yet I get, "Wi-Fi has self-assigned IP address 169.254.9.151 and will not be able to connect to the Internet." Can anyone tell me what is wrong?
I did both a soft reset and a hard reset to no avail. PLEASE someone help!!
Thanks!

I would recommend that you do the following as a minimum:
Power-down the modem, AirPort base station, and computer(s).
Power-up the modem; wait at least 10-15 minutes to allow it adequate time to initialize.
Power-up the AirPort base station; wait at least 5-10 minutes. Note: The AirPort's status light may continue to flash amber after it has intialized. That is because, there may be some additional configuration items necessary, like setting up wireless security, before the overall setup is completed to get a green status.
Power-up your computer(s).
If the above steps do not solve the problem, start over with step 1 above, but then perform the next steps between steps 1 & 2. above.
Disconnect the AirPort base station from the Internet broadband modem.
While all of the devices are powered-down, perform a "factory default" reset on the base station. This will get it back to its "out-of-the-box" configuration and make setting it up much easier, especially if you use the "Assist me" process within the AirPort Utility. (ref: Resetting an AirPort Base Station or Time Capsule)
After the base station resets, go ahead and power it back down.
Reconnect the AirPort base station to the Internet broadband modem. For the Extreme and Time Capsule, be sure to connect the cable to the base station's WAN (circle-of-dots) port.
Continue with step 2 in the first set of steps.
In this basic configuration, the AirPort base station will broadcast an unsecured wireless network with a Network Name (SSID) of Apple Network NNNNNN. Network clients, connected to the base station either by wire or wireless, should now be able to access the Internet through the ISP's modem. Once Internet connectivity has been verified, you can use the AirPort Utility to configure the base station for wireless security and any other desired options. Please post back your results.

Self-assigned IP - No connection

I have a perfectly fine IP address when I'm hardwired, and a full signal, but no internet connection. Here's the steps I've taken. What am I missing?
-Obtained a valid IP address and connection by connecting my Powerbook G4 to my cable modem via ethernet.
-Turned off my computer, unplugged the cable modem, and let them sit, powered down, for over thirty minutes.
-Plugged the modem and Airport Base Station together via ethernet cord.
-Plugged the power into the cable modem. Waited for it to boot completely.
-Plugged the power into the base station. Waited for it to boot completely.
-Booted my laptop. AirPort: On. Full signal. No internet connection.
-System Preferences>Network>Network Status: "Airport is connected to the network home. AirPort has a self-assigned IP address and may not be able to connect to the internet."
-System Preferences>Network>AirPort> Configure IPv4: Using DHCP; IP Address: 169....
-Released and Renewed. Turn AirPort on and off. Released and Renewed again. Still 169 IP.
-Called ISP, said I was getting a good signal, problem must be on my end.
-Ran Network Set-up Utility. Get this error: Your computer could not connect to the Internet. Click OK to go back and change your network settings, and try again.
-Fails, fails, fails.
What is wrong? What am I doing wrong? And how can I make it right?
(All my software and firmware is up-to-date)
Powerbook G4 12 inch Mac OS X (10.4.5)
Powerbook G4 12 inch Mac OS X (10.4.5)

PrincessofMars,
I am getting the same issue. I just moved and got a cable modem from my internet company and went to set up my airport, old snow version, and I can't get both of my computers (pre-intel Mini and old ibook) to both work at the same time. I have been getting the "Self-Assigned IP - No connection" message as well. I have my mini working with the airport, but I can't get the laptop to work and I don't want to have to keep plugging in and unplugging stuff just to get the computer I am working on to connect to the internet.
Is it time possibly for me to just upgrade to a new Airport system?
- Sanjuany
I have a perfectly fine IP address when I'm
hardwired, and a full signal, but no internet
connection. Here's the steps I've taken. What am I
missing?
-Obtained a valid IP address and connection by
connecting my Powerbook G4 to my cable modem via
ethernet.
-Turned off my computer, unplugged the cable modem,
and let them sit, powered down, for over thirty
minutes.
-Plugged the modem and Airport Base Station together
via ethernet cord.
-Plugged the power into the cable modem. Waited for
it to boot completely.
-Plugged the power into the base station. Waited for
it to boot completely.
-Booted my laptop. AirPort: On. Full signal. No
internet connection.
-System Preferences>Network>Network Status: "Airport
is connected to the network home. AirPort has a
self-assigned IP address and may not be able to
connect to the internet."
-System Preferences>Network>AirPort> Configure IPv4:
Using DHCP; IP Address: 169....
-Released and Renewed. Turn AirPort on and off.
Released and Renewed again. Still 169 IP.
-Called ISP, said I was getting a good signal,
problem must be on my end.
-Ran Network Set-up Utility. Get this error: Your
computer could not connect to the Internet. Click OK
to go back and change your network settings, and try
again.
-Fails, fails, fails.
What is wrong? What am I doing wrong? And how can
I make it right?
(All my software and firmware is
up-to-date)
Powerbook G4
12 inch Mac OS X (10.4.5)
Powerbook G4 12 inch Mac OS X
(10.4.5)

Airport Extreme self assigning IP address

Please help me!!
I'm having sudden problems with my connection via the Airport extreme. The Icon in the top bar shows that the MBP is connected 2 the specified network, however, when I try to browse with Safari or Firefox, I get a message saying I'm not connected to the internet. This has happened while trying to connect to 2 different networks.
I have noticed that the Airport is self assigning an IP address. I'm not an expert, but I thought the IP was assigned by the ISP.
I have read a few other posts on here and followed the advice posted.
http://discussions.apple.com/thread.jspa?threadID=2365709&tstart=45
http://discussions.apple.com/thread.jspa?messageID=10695921&start=1
One piece of advice has offered me a temporary fix. I placed the 'System Configuration' folder on my desktop and restarted the MBP. This allows me about 24hrs grace, however if I try to connect to a different network, I have the same problem crop up.
The mac is about 18 months old and has worked like a dream up until a couple of days ago!
If anyone can shed some light on this, I would be most grateful!
Thanks in advance.

The message about a self assigned IP address is a fancy way of saying that your Internet connection is not working correctly.
When something like this happens, the first troubleshooting step that you should take as a complete network power cycle as follows:
Power off everything on your network....all devices....order is not important
Wait a moment or two
Start the modem first and let run run for a moment by itself
Then start the next device connected to the modem the same way
Continue starting devices one at a time until everything is powered back up
Check for proper operation

Self-Assigned IP error and no Internet thru cable, but fine via Airport crd

I am having a vert weird problem. Airport base station hooked to a LAN router, new Mac Pro (10.5.1) hooked via cable to Airport base station. I get the self-assigned IP address and no internet. This happens also if I hook Mac Pro directly to router via cable. Oddly enough, during all of this, my iBook connects fine to the Internet, thru the base station using its Airport card. What gives, I may throw in the towel and go out and by an Airport card for my Mac Pro to get Internet connectivity, even though it sits only 6 inches from the base station. Also not, my Power Mac G4 was hooked via cable to the Airport and worked just fine...
If someone discovers a fix, please feel free to email.
Thanks,
Bob A.

Funny you should mention that. This weekend I noticed that I can get an IP address and internet connection, either via the Ethernet cable from my AEBS or wirelessly from the AEBS on my laptop, but only one at a time and it depends which computer (iBook or Mac Pro) is on when the AEBS is toggled on/off. The only exception is my iPod touch, which can get an internet connection no matter which is the Internet connected machine(how's that for bizzare ?).
So, it appears the Linksys router that is hooked to our building's LAN is not distributing IP addresses (disconnecting the router and connecting the AEBS directly to the LAN produces the identical single IP address situation). Since using my Mac Pro with Leopard, I can only set up the AEBS in bridge mode, putting it in the DHCP mode causes the AEBS to be undetecable by the Mac Pro (haven't checked if the iBook sees it).
So I guess the questions are now:
- Shouldn't my router be assigning IP addresses from the LAN, isn't that it's job? Should I try buying a new one since I can't get AEBS to DHCP?
- Why would my iPod touch me immune from the single IP address situation?
- Any idea how to get Leopard to allow my AEBS to use DHCP?
Now I say I can't use DHCP, I mean that if I reset the AEBS, start from scratch and use assisted setup with Airport Admin Utility, and select DHCP at the place where you select Bridge or DHCP mode (or whatever the DHCP mode is called, I forget)the AEBS disappears. If I set bridge mode and then dicker around with DHCP manually, it doesn't disappear, but then it just won't give an IP address to any computer til re-rest and put back in old plain Bridge mode.
I would prefer to run the LAN right into AEBS and have it act as router and all that. I would also be fine with having a router and letting AEBS just bridge, just as long as I can connect to the Internet on more than one computer at a time.
I think I have a basic knowledge of what's going on, although my use of proper terminology is lacking, so feel free to follow up with any questions, I'd be happy to clarify.
This Leopard Mac Pro replaced a PowerMac G4 with Tiger and this all worked fine with it. When I traded computers and didn't get Internet I reset and re-setup the base station, so this might all be a Leopard problem
Of course, it brings me back to shouldn't the router hooked to my building's LAN be distributing IP addresses?
Thank you in advance for your help on this isssue.
Bob A.

My imac show self assigned IP when connected to Wi Fi Router. Any Solution Guys., My imac show self assigned IP when connected to Wi Fi Router. Any Solution Guys.

My imac show self assigned IP when connected to Wi Fi Router. Any Solution Guys., My imac show self assigned IP when connected to Wi Fi Router. Any Solution Guys.

Who is your ISP?
Power-Cycle the modem... and then ower-cycle the router...then finally power-cycle your computer.

Airport has "self assigned ip", no connection to internet but network ok

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