MacBook Pro Self-assigning IP

I got the new MacBook Pro at Christmas and only recently has my Airport been acting up. It started about 2 weeks ago with it not connecting right away to a secure network on my campus and then a couple of days ago stopped working while I was at a hotel. It began working again when I got back home but then last night, it stopped working and when I checked the network diagnostics it says it has a self-assigned IP and may not connect to the internet
I have the newest updates (even for Airport) and my firewall is off and the IPv4 is set to Using DHCP and the IPv6 is set to automatic. I don't really know what that means. Any help would be appreciated. I hate having to be wired in all the time.
Thanks!

OK try this:
Open System Preferences/Network and for Location select Edit Locations
Click the + sign down left and create a New Location called 'Home'
Under Location then select 'Home'
Down left is a button with a cog and small down arrow on it, click that for a pop-up menu and select 'Set Service Order'
When that window opens drag Airport to the top of the list and put Ethernet second and Firewire third, click OK to close the window
Back in the main window click on Airport (at the top of the list) and then hit the 'Advanced' button down right
Click + and enter the name of your home wireless network and set the appropriate Security setting and enter the password - click 'Add' when done. Drag it to the top of the list if multiple items so it always tries that first.
Click the DNS Tab at the top then hit + and enter the Primary & Secondary DNS Servers supplied by your ISP, if you can't find these try using 4.2.2.2 and 4.2.2.1 - click 'OK' when done.
Click the TCP/IP Tab and set 'Configure IPv4' to Using DHCP and IPv6 to Automatic then click 'OK'
Click 'Apply' bottom right and you should be assigned an IP number by your router and have Intenet Access

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Macbook Pro Self Assigning IP Addresses

Hi,
I bought a Macbook Pro in August of this year, that came with Lion. I had no trouble connecting to the internet in my apartment, and had no problem connecting to the internet on my college's campus. However, a few weeks ago, I brought my computer to campus and when I tried to connect to the internet, it said I could not connect because I had a self assigned IP address. By this time, my computer had upgraded to Lion 10.7.2. My college's campus does not require a password, so I just deleted it off the list in network preferences when I got back to my apartment and brought it back the next day. It finally seemed to work ok. Then I went to my friend's house over the weekend and she has a password for her internet, and after I entered it correctly, at first it told me the same error about a self assigned IP address, but then it finally connected. Today on campus, when I turned on my computer the first couple times, it worked fine. But now when I just turned it on again it came up with the self assigned IP address error again.
I'm not sure if there's anything I can do because this seems to keep happening inconsistently. But I was wondering if anyone had any tips, and I'm happy to provide any additional computer information because I'm not sure what else is necessary to know for this situation.

OK try this:
Open System Preferences/Network and for Location select Edit Locations
Click the + sign down left and create a New Location called 'Home'
Under Location then select 'Home'
Down left is a button with a cog and small down arrow on it, click that for a pop-up menu and select 'Set Service Order'
When that window opens drag Airport to the top of the list and put Ethernet second and Firewire third, click OK to close the window
Back in the main window click on Airport (at the top of the list) and then hit the 'Advanced' button down right
Click + and enter the name of your home wireless network and set the appropriate Security setting and enter the password - click 'Add' when done. Drag it to the top of the list if multiple items so it always tries that first.
Click the DNS Tab at the top then hit + and enter the Primary & Secondary DNS Servers supplied by your ISP, if you can't find these try using 4.2.2.2 and 4.2.2.1 - click 'OK' when done.
Click the TCP/IP Tab and set 'Configure IPv4' to Using DHCP and IPv6 to Automatic then click 'OK'
Click 'Apply' bottom right and you should be assigned an IP number by your router and have Intenet Access

Hi, I have a MacBook Pro and a PC both connected to a TC who in turn is connected to a cable modem. I have no wifi accessfrom my MacBook pro (self assigned IP - no internet connection msg) while I do on PC through ethernet? can anyone help?

I was working yesterday afternoon when the wifi suddenly went cold. Initially on the MacBookPro and on the ethernet connected PC. I reinitialized modem and TC through the mac and then the ethernet on the PC worked again and has since.
I've reinitialized both the modem and TC many times, as well as checked the cables. Moreover, I've tried to renew the DHCP lease, provide the DNS servers manually, erased all networks in Network preferences and in KeyChain etc. but nothing seems to work.
One strange thing also happened. I had two networks created, one for me and one I created for guests. The latter one just vanished, dissapeared without a trace.
I've tried from the café down the street and the Wifi worked perfectly well though a little slow, but that could be their connection not the Airport. Therefore, my I deduct that there is either something wrong in the TC or something went wrong in the network settings in the Mac. But that doesn't help to move forward and fix the darn thing.
The only thing I haven't done is completely reset the TC, but after reading a couple of help threads on different forums I'm confused as to how to proceed to get it back to worrk? Has anyone had the same or similar issue and found a solution?
Thanks

Eh la Pastenague! Je savais que tu était léthale pour l'homme mais ce sont pluôt les machines à pommes qui devraient te craindre. Merci! Solved.
For future reference.
My TC is a 3rd gen.
I actually had to reset to standard defaults not only once but twice. The first time I simply returned to my old profile but that only led to the same message error on the network settings (i.e. IP by default, cannot connect to the internet). Therefore the second time around I kept my profile as backup and re-created a new one plus a guest one.
The airport utility then signaled to issues remaining:
1) Internet access was cut - this I solved by simply reseting the cable modem
2) There were no DNS Servers - I simply copied the ones I had from the previous setup and it worked
I did have AppleCare....
I'm online again and I hope for good.
Thanks a lot
PS. a small tip - I made captures of all my settings in Network settings, Airport Utility and Network utility using Grab in case of ... if anything it is just handy to get back settings that your are missing when setting up a new configuration

My MacBook is self-assigning its IP address (and won't let it go)

My MacBook is generally well-behaved, but at times (seemingly random times), it self-assigns an IP address when it should be getting one from a router. The problem is sporadic and occurs in two separate locations - home (where I have control of the wireless router) and school (where I have no control over the router).
Sometimes I come home from school, and I have no problem connecting to my WLAN (2Wire router). Sometimes, however, I get the dreaded "self-assigned IP address" message, and I cannot thereafter get an "un-self-assigned" IP address. I have tried renewing the DHCP lease - no luck. I have tried trashing com.apple.airport.preferences.plist, and although that has worked on occasion, usually it doesn't solve the problem. Even more maddening is that rebooting doesn't help. Nothing consistently solves the problem - and that is so much more annoying than the problem itself!
At school I have this same problem and more. The school network SSID is not broadcast, so AirPort seems not to be able to remember it. Every single time, despite the fact that I've asked it to "remember this network," I have to type in the SSID and WEP in order to join the network. Sometimes it works quickly, and sometimes it won't work for a while, and other times it self-assigns an IP address. (ARGH!) And then I have to try the hit-and-miss "solutions" that work sporadically at home, which work equally unreliably at school.
Can I make it STOP self-assigning an IP address when it thinks it can't get one from the network? Part of the problem seems to be that the AirPort does not to want to give up its IP address after it has self-assigned. Is there an equivalent to the DOS command ipconfig /release that I could type from a terminal window? (It has been a while since I used UNIX.)
There are many things I like about my new Mac (I was a UNIX user in grad school and then had to use a PC at work, so I am a newbie to Mac OS), but this problem is totally unacceptable for a computer that is supposed to be so much better than a Windows-based machine. At least in Windows I knew how to troubleshoot problems - here I am completely helpless! And I CANNOT believe Apple has not fixed this, because from what I can tell by looking on the web (when I can actually get a real IP address), people have had the problem for at least FOUR YEARS!!!!!!
Please help - I am desperate! Thank you in advance.

Have you tried making a New Location for each yet? The Automatic one get confused easily.
Some "nix" to try when it happens also...
sudo ipconfig set en1 BOOTP;sudo ipconfig set en1 DHCP
sudo ifconfig en1 down;sudo ifconfig en1 up
Sometimes having an all OFF Location can help, thanks to Gnarlodious...
http://gnarlodious.com/Computer/MacOsx/WiFi

MacBook has self assigned ip address and cannot connect to the internet.

Is there an Apple recomended fix for this problem that works? I've looked on this board and have found several similar suggestions but as yet nothing that results with consistent connection every time I restart.

Since there is no exacting way to tell what of several suggestions offered in
these discussion boards, you may have tried, I will offer an Apple Support
article name and web address link; it may be you have tried this:
• Mac OS: How to release and renew a DHCP lease
http://support.apple.com/kb/TS1920
And you can get a similar self-assigned IP address via a wireless network
or a wired local network - with a theoretical connection to the internet. If
the actual connection in software is not set correctly, the default will likely
be something very familiar since the same one appears then.
If the Network system preference panel is set and you have chosen the
mode of connecting to the internet or other connected network, then
you can set the configuration of that choice in a secondary screen. In
order to have a choice to connect via AirPort, for example, you have to
check box the item and also drag it into a position of priority (first.) Or,
if you have to connect via Ethernet to a cable/DSL modem (if not USB)
you can choose to place Ethernet in a position of priority above others.
Then, further the Network configuration's next step to set it up correctly.
The above link does cover the basics adequately, including a reset of
the cable or DSL modem. If there is a cable modem and also a wireless
base station, you may also have to reset each of them in a specific way
in order to get them to start up and work. This may be all it takes.
Good luck & happy computing!

I installed my new iMac with my Macbook Pro 2008 backup and created a network with the iMac and now the Macbook Pro cannot get internet.

I installed my new iMac with my Macbook Pro 2008 back up. I created a iMac network with Airport extreme, but now my Macbook Pro cannot get internet. any ideas on why or what to do about it.

Hello 1BillyMac,
It seems you have a network conflict that isn't allowing your MacBook Pro to connect to the internet. This may be caused by both computers sharing identical network settings. You may want to consider creating a new network location on your MacBook Pro to assign new network settings. The following article will instruct you on how to do that:
OS X Yosemite: Add a network location
A network location is a group of network settings
A network location is a group of network settings for your various network services (Ethernet or Wi-Fi for example).
If you often change network settings, you may find switching between locations quicker and easier than repeatedly modifying individual groups of settings.
For example, you might want to make a location for “home,” where you connect to the Internet with a telephone modem, and a location for “office,” where you connect to your company network and the Internet using Ethernet or AirPort.
Choose Apple menu > System Preferences, then click Network.
Click the Location pop-up menu, choose Edit Locations, then click Add .
Enter a name for the location, then click Done.
Enter settings for each network connection service you want to use in that location.
After you create your locations, you can switch all of your network settings by clicking the Location pop-up menu and choosing a different location.
Thank you for contributing to Apple Support Communities.
Cheers,
Bobby_D

MacBook Pro can't actually connect to Wi-Fi with Self-Assigned IP

Hi there
I have a 15 inch MacBook Pro and it can connect to Wi-Fi but have no actual data coming in. And it says self-assigned IP.
This only happens to my home Wi-Fi, however, I can connect and use Wi-fi at school or anywhere else perfectly. In the mean time, my Android phone and my flatmates' Windows have no problem using the Wi-Fi. The problem has been going on and off for a month, sometimes it works again and sometimes it goes wrong like this again.
During this time I mostly use my other MacBook Pro 13 inch Retina. Until today, this problem happens on my 13 Retina mac for the first time, and the 15 Pro again as well. A few days ago, my 15 Pro started working again, and today they just gone wrong together at the same time.
I just found out that my 15 pro can still work if connected to ethernet, but I can't just work in the living room, where the router is. And as you know Retina doesn't support Ethernet.
I've check on the Internet and found many people have the same problem as I do. I also tried lots of ways to fix it with the information I found online. And nothing works. I even suspect that it's actually my flatmate blocks me out with some setting on the router (Is it possible?)
Anyways, can someone please help me fix it thoroughly... Please and thanks.

Each country regulates wireless networking differently. Wi-Fi devices are restricted to certain frequencies and power levels. The client devices try to find out where they are and configure themselves accordingly. Since a wireless access point (WAP) usually does not move across national boundaries, the Wi-Fi regulatory domain (country code) is set by querying the first one to respond when the client initializes itself. You don't have any direct control over it on the client. If your device is picking up the wrong country code, and is therefore locked out of using some Wi-Fi channels or operating at full power, the only lasting solution is to fix or remove the misconfigured WAP.
To find out which WAP's are broadcasting a wrong country code, do as follows.
Triple-click anywhere in the line below on this page to select it:
/S*/*/P*/*/*/*/*/airport -s | open -ef
Copy the selected text to the Clipboard by pressing the key combination command-C.
Launch the built-in Terminal application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad. Click Utilities, then Terminal in the icon grid.
Paste into the Terminal window by pressing command-V.
The command may take a noticeable amount of time to run. Wait for a new line ending in a dollar sign ($) to appear.
A TextEdit window will open with the output of the command. The first line should look like this:
SSID BSSID RSSI CHANNEL HT CC SECURITY (auth/unicast/group)
Each line below that one represents a WAP within range. Compare the two-letter code in the column headed "CC" with the ISO code for your country. The code "X0" means that the country couldn't be determined. If a WAP with a wrong code is not under your control, try restarting the computer as close as possible to your own router.

Hey, for some reason i turned on my macbook pro 2012 and it says i have no internet access. I then found out that it also says that my self assigned ip address will not connect to the internet. How is this and how can i fix it?

hey, for some reason i turned on my macbook pro 2012 and it says i have no internet access. I then found out that it also says that my self assigned ip address will not connect to the internet. How is this and how can i fix it?

Reset your modem.

My Macbook Pro says Wi-Fi has the self-assigned IP address 169.254.74.157 and will not be able to connect to the internet.

I just got my new Macbook Pro today. When I tried to connect it to my Wi-Fi at home it won't connect. I put in my WEP key correct every time and it keeps saying "Wi-Fi has the self-assigned IP address 169.254.74.157 and will not be able to connect to the internet" . I connect my iPod touch to this same Wi-Fi all the time plus my other laptop and my phone and it works fine. Please help !! I use Verizon Fios modem/router.

Hi, it could be that the Router will not allow you onto the network..Reboot, Modem,Router & computer..
Find out the native IP address for your Router & reset the network configs''
Use Keychain Access to Delete all Internet/Router Passwords etc.. Then Roboot..

Macbook Pro stuck on Self-Assigned IP when connecting to hotel Wifi

my travel mates are having no problems connecting to hotel wireless.
i can connect to the access point, but i can't get online. my network pane in system preferences says "self-assigned ip" and it won't do anything else.
we're all on macbooks or higher. 10.5.6 or 10.5.7
i've tried replicating the working macs' IP settings as a manual config on my MBP. no luck. it's very odd. i'm stuck. any ideas?
i've used onyx to clear out all caches. done a full shut down, restart, pram reset. toggling my airport card power. i can connect using my Verizon wireless (like now, as i type this). my travel mates also use the same Verizon modems and software. i don't think that that's causing a problem.

This was happening to me at my office today. It kept saying that it had Self-Assigned IP. My ISP told me that it wasn't recognizing my router.
First, I made sure that the Under TCP/IP that "Configure IPv4" was set at "Using DHCP" from the drop-down menu and then I shut my computer down. I then reset my modem and linksys router (unplug power to back of modem first and then router, then plug modem back in, wait for 4th light of modem to go on,then plug router back in). After that, I restarted my iMac and it Configured IPv4 correctly using DHCP. Sorry if I'm being too basic, don't have a lot of networking knowledge. I've asked the hotel I was staying at before to reset their modem/router and they were able to do this for me.

Self Assigned IP from my macbook pro to xbox through ethernet...

I live in a college dorm and i have been using internet sharing through an ethernet cable to connect to xbox live and it has been working fine for months now, but has now recently decided to make everything difficult and it continuously just says self assigned IP address cannot connect to internet. Every video and forum I have tried reading generally refers back to something involving the router however in this case my wifi is working no problem its just the ethernet cable going to my xbox that has the self assigned IP problem. If anyone could help me it would be greatly appreciated, thank you!

It isn't clear what you are trying to do. Why are you connected to the Xbox? Is the Xbox suppose to share the internet through your mac?
Since there is so little information, I'm going to go through a lot of stuff you might already know.
You have two network interfaces on your Mac. en0 which is the cable and en1 which is the wireless.
IP addresses are assigned through a process called DHCP. When you have a self-assigned address there is no DHCP server.
The DHCP server -may- be on a router or it may be on several different devices such as a Unix computer (or Linux) specifically set up to provide DHCP addresses. Since you are in a dorm, is is quite likely a specifically configured host is providing DHCP.
Your wireless network will get a different DHCP address than your wired network. For example, 128.1.0.0/16 might be the network assigned to the wireless to support 253x253 different hosts (a lot of hosts and the main reason to keep DHCP off of the router). And something like 129.1.0.0/16 would be assigned to the wired network.
The DHCP server for the wireless network WILL NOT provide an address for en0.
NOTE: I have never used Apple's Internet Sharing and I -assume- that when you share that the Mac acts like a bridge.
I also assume that this is what you are attempting to do with your Xbox. This would mean that the Xbox would have to initiate a DHCP request for an address that is forwarded (bridged) through the Mac to the DHCP server. This request includes the Xbox hardware address. Now comes the part that is going to make you cry. MAC addresses are 48 bits and look like AB:CD:EF:12:34:56. The first 24-bits are assigned to a manufacturer and used for specific products. When the DHCP request gets to the DHCP server, it knows that the request is from an Xbox. Your campus may have decided that you've been playing too many games and does not respond with an IP address for the Xbox.
You can check this out by using a tool called tcpdump or you can install Wireshark. If you want to go down this rabbit hole, it is going to require quite a bit of time and you'll end up becoming quite well educated in how networking works. People go to school for years to understand this. :-)
Or, maybe you just forgot to ensure internet sharing was on.
If you have some other kind of wiring setup then perhaps you have a different problem.
BTW, when you plug the ethernet cable from the Xbox into the mac that "activates" it.
By default OSX is configured to use DHCP to provide an address.
If the Mac sends out DHCP requests over the ethernet cable and never gets a response it will then self-assign an address.
A self-assigned address cannot be used to get to the internet.
(But, I understand that it your Xbox that isn't working not the Mac, especially since you were able to post your question here.)

I cannot found iLife app on my macbook pro and when i want to buying it i cannot and i have this massage (These apps cannot be accepted by your Apple ID.These apps were already assigned to another Apple ID, and they will be available in that Apple ID's P)

i cannot found iLife app on my macbook pro and when i want to buying it i cannot and i have this massage (These apps cannot be accepted by your Apple ID.These apps were already assigned to another Apple ID, and they will be available in that Apple ID's purchases list. If you don't have access to that AppleID and want to receive future updates, you will needto purchase the applications ) what i want to do now ? please tell me

Either use the Apple ID you used when you originally purchased the applications or you will have to purchase them using your Apple ID. If you did not have the other Apple ID, then you have the applications illegally or they were improperly included with a computer you purchased from someone else.

I got a macbook pro 13 inch core i5 late 2011 , it came with osx lion and i been using facebook videocalls normaly , now i updated to Mountain lion but when i use facebook video calls in (safari ,chrome ) i see the window box but i only see my self i c

i got a macbook pro 13 inch core i5 late 2011 , it came with osx lion and i been using facebook videocalls normaly , now i updated to Mountain lion
but when i use facebook video calls in (safari ,chrome ) i see the window box but i only see my self i can hear my friends but cant see em, they also can see me and hear me but i just see me and hear them .
any ideas ?

Your wifi problem sounds very much like the problem I had. The wifi would drop out, the icon showed it was still connected. If I turned it off, I couldn't turn it back on. Another user here pointed me to the problem, which was the wifi cable (the flat cable goint from the card to the motherboard). I found it on ebay for $13 and it's been running fine since I replaced it. This is the repair guide for your machine. The part number will be on there if you click the link.
http://www.ifixit.com/Guide/MacBook+Pro+15-Inch+Unibody+Late+2011+AirPort-Blueto oth+Cable+Replacement/7510

My MacBook isn't connecting to the Internet. When I try to connect, it shows the signal strength in the top right corner as if it was connected, but the Internet doesn't work. When I go to my network preferences, it says the ip is self-assigned.

My MacBook won't connect to the Internet, but it's connected to my router. When I go to network preferences, it says that it has a self assigned ip address, and can't connect to the Internet. How can I fix this? Please help!

First thing you need I think is to get your iMac connected to the Internet.
Shut down your iMac and you iPad. Then power off your router. Wait 30 seconds and power up the router.
After the router indicates that it is connected to the Internet then start up your iMac and see if it connects. If the iMac connects to the Internet then your iPad should too.
If this power up sequence doesn't work you'll have to dig into the router setup to make sure it is working properly.

My macbook air will not connect to the internet due to a self assigned IP address. I have tried trawling the support forums, but either I can't understand the suggestions, or they don't work. Please explain to me in simplest terms how to fix this. Thanks!

My macbook air will not connect to the internet due to a self assigned IP address. I have tried trawling the support forums for hours, but either I can't understand the suggestions, or they don't work. Please explain to me in simplest terms how I can fix this. Many thanks!

The warranty entitles you to complimentary phone support for the first 90 days of ownership.
If you bought the product in the U.S. directly from Apple (not from a reseller), you have 14 days from the date of delivery in which to exchange or return it for a refund. In other countries, the return policy may be different. If you bought from a reseller, its return policy applies.

MacBook Pro Self-assigning IP

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