Self assigned IP address

I'm having the same problem with my macbook pro OS X 10.6.3

I've tried practically evrything that i could find over the internet but have yet to solve this problem.

SOOOO FRUSTRATED!!!

WOOOO finally got my mac working again after 6 hours.....

for those of you who have tried just about everything you could find just like i did this is what worked for me.

From what i've read from all kinds of sources the problem has something to do with the communication between the airport and modem/router. Try disconnecting your airport to whatever network that you are having problems with and search for an open one(one that does not require a password) to check if you can connect to it instead. This is to check if your airport works at all and if it does, well that's a good sign. Reset you modem/router (this isn't always easy as you'll have to set it all up again from scratch.) Then delete the network from your airport list, turn off airport and restart mac. From there turn on airport again and reconnect with your newly resetted network.

If this doesn't work right away you can try manually assigning an IP address and then hit renew DCHP. I was able to connect after that. I know this might not work for people having problems with connecting from offices and schools as it will be difficult to reset their modems, but i hope this might help others or at least give them an idea as to where the problem might be. 🙂

My friend asked if I could take a look at her laptop (macbook) because it would not connect to the internet. I went to her house and discovered the wifi was not working. She was getting the self assigned ip address and the internet would not connect. I took my own laptop (macbook pro) to her house and was able to connect to her wifi no problem. I connected her laptop via ethernet and that worked. Brought her laptop to my house and it connected to my wifi no problem.

I surfed the internet looking for a fix. I was afraid to mess someone else's computer up. I was desperate to find a solution that didn't require me to delete or move anything around.

I had already tried numerous things (including installing a new operating system), but none of them worked.

Here is what I did today that fixed the issue for her. I'm going to list it all, although I don't think it is all needed.

1. I unplugged the power cord and coaxial cable from the router. I turned the airport off on her laptop and turned the laptop off. I left everything off for about a minute.

2. I reconnected the power cord and coaxial cable and turned the computer back on.

3. When it all turned on and airport was turned back on, it still had the same results....no internet.

4. I went into system preferences, network, wifi, then clicked on "Assist me" at the bottom.

5. I chose Assistant and followed the prompts. I named her new location "home", then chose her network that I wanted to connect to and entered the password. Following all the prompts when the process was over, the laptop connected to the internet!

I really feel that only steps 4 and 5 need to be done, but I listed all steps I took just in case. I did tell my friend that I'm not sure if she leaves her house and connects to another network and then back to her house and connects to her network if it will continue to work. I showed her how to go into system preferences, network, wifi and assure that her location is set to "home".

Anyway, this is what I found to work and thought I would share since in all my searching, this wasn't a solution that I found.

I was having this issue at my public library, where you get a window that automatically pops up (when working) and asks you to agree to terms and connect. I tried renewing the lease and it didn't help. I tried setting the DHCP to manual, and changing the ip address and it didn't help. I tried adding a DNS server and it didn't help. I tried verifying keychain access and it didn't help. I tried adding an acception to the firewall (system-->library-->coreservices-->NetAuthorAgent.app) and it didn't help.

Then I clicked on "Assist Me..." in network preferences and it changed my manuaul DHCP back to automatic, allowed connection, etc. and now it works. At the moment...

After hour and hours of trying a fix.

I Factory reset my router and now all works fine ! Do this it works.

Thank you so much Desigurl03! I also couldn't connect to my home wi-fi (although my son's mac worked fine, as well as, my ipad). I tried every method before yours and none of them worked. After days without internet on my laptop, your solution worked for me. Two thumbs up!

Ok, so my problem migrated from a self-assigned ip issue into something else. For me, I think it was a keychain issue because after deleting the keychain entries and reconnecting it now "connects" fine. However, now it thinks I am completely connected (green dot) but I can't actually access the Internet (browsers think DNS issue).

I have tried everything above, I get the same issue with manually assigned ip. Must be a communication issue with the router, I think, but unfortunately I don't have the luxury of resetting the router to factory or changing the wep to wpa. My iPhone and iPad connect perfectly fine, and my MacBook Air used to be perfectly fine on this network before.

Dying here... Help!

(btw, where is apple support on this?)

I also had this problem for both ethernet and wifi connections,

with Wind*ws in Bootcamp mode working,

and all other devices and/or colleagues at work connecting,

and most solutions didn't work.

What solved it for me (I hope it lasts) after 3-4 stressful days was

a 'Repair Disk Permissions' through the Disk Utility.

It found that the 'com.alf.plist' permissions caused the problem.

So maybe you don't need to delete it, at least in some cases.

(Apple Support will be 19$ -in my region at least!)

I did 'Repair File Permissions' followed by a Restart, and it worked!

Cheers!

After spending hours trying to resolve the same problem of not being able to connect to the internet - also got: "the Wi-Fi has the self-assigned IP address 169.254.222.165 and will not be able to connect to the Internet."

ericdy's solution sorted out my problem. I think he needs to replace some of those how ranking advisors on this forum!

Woo hoo, glad it was helpful, can't take the credit though because I found the solution through others. I just remember how frustrating it was trying to get to the bottom of it. I haven't had another problem with it since I applied the solution many months ago. All the best!

Do this the stuff you find at the bottom of this thread:

https://discussions.apple.com/thread/3864270?tstart=0

I found a work-around that works for me where none of the other solutions posted before have worked (for me). The beauty of this fix is that it works when you are using wifi away from home (e.g. in a coffee shop or hotel) and can't set a static IP because you don't know what numbers the router is using.

Turn on the AirPort, select the network, let it connect. Go to System Preferences -> Network, select your Airport connection then click Advanced, and select the TCP/IP tab. You will see the self-assigned IP address.

Turn your Airport OFF (right click or control click on the icon in the menu bar, select Turn AirPort Off).

In the still-open Advanced settings TCP/IP window, click on Renew DHCP Lease. Do this several times, as it may "renew" with the self-assigned IP address the first few times. Eventually you will get NO IP address. This means you have finally convinced the buggy DHCP process to abandon what it thinks it knows about an IP address you have previously "used" (the useless self-assigned IP address).

Now turn your AirPort back on (right click or control click on the icon in the menu bar, select Turn AirPort On). Let it come on, and connect (or offer to connect) you to your wifi. If necessary, select the wifi you want to connect to.

Watch in the still-open Advanced settings TCP/IP window as your connection gets an IP address. Sometimes it briefly shows the self-assigned address before getting a routable address. When you have a working network connection you need to click "cancel" to close the Advanced settings window and return to the Network settings window, from there you can just close System Preferences.

I have found this to work 100% of the time where none of the other fixes in this thread helped me.

Oops, please ignore. (No way to delete after posting. grrr.)

I've tried everything I found online and nothing worked. Then I tried something that finally fixed my wifi after months of trying. Here's the link for the video I made showing what to do (very easy!)

http://www.youtube.com/watch?v=DHCBRsSvFwA

Hopes this helps. I was extremely happy when it worked for me.