"ethernet has a self assigned IP address and will not connect to the internet" - how do i fix this?

A message saying "ethernet has a self assigned IP address and will not connect to the internet" comes up whenever I plug the cable in. Everyone's computers work except for mine work in the house and I have tried different cords and connecting sites.
Please help

Open System Preferences/Network
Select the Location you use at home
You may need to click the Padlock bottom left at this point if it's locked, enter the admin password to unlock
In the left hand column drag the Ethernet connection to the top of the list and remove any you don't use
Click the Advanced button bottom right
Click the TCP/IP Tab
Set Configure IPv4 to Using DHCP
Click OK bottom right and you should see the Router IP number appear and a unique but similar one for your Mac
Click Ok then click Apply and close the Panel

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My ipad recognizes my home network but will not connect to the internet. When I click on AirPort/preferences at the top of the imac screen it says..."AirPort has a self-assigned ip address and may not connect to the internet".How can I change ip address?

My ipad recognizes my home network but will not connect to the internet. When I click on AirPort/preferences at the top of the imac screen it says..."AirPort has a self-assigned ip address and may not connect to the internet". If this is the root of the problem,how can I change ip address?
Ipad will connect no problem to other networks.

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.
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If this power up sequence doesn't work you'll have to dig into the router setup to make sure it is working properly.

Ethernet has a self-assigned IP address and will not be able to connect to the Internet. on host mac

im using a cross over cable from a macbook pro{mavrics}, to a imac {lion}. ive been sharing internet from a dongle no problem for months but now it started saying Ethernet has a self-assigned IP address and will not be able to connect to the Internet. on the macbook. and every thing is hay ok on the imac ¿¿¿ ive been googling all day to no avail

System prefs > Sharing. seroapple wrote:
im using a cross over cable from a macbook pro{mavrics}, to a imac {lion}.
Don't need a crossover cable.
Make sure System prefs > Sharing is set up correctly.
-> https://support.apple.com/kb/PH13855?locale=en_US

Ethernet has a self-assigned IP address and will not be able to connect to the internet

Ethernet has a self-assigned IP address and will not be able to connect to the internet
The problem appears to have been a connection error as well as the system preferences which have reset with a 'valid' IP address after a system preferences 'reboot'.

Power off your internet router. Disconnect completely from its mains power by pulling the plug out of the mains socket. Disconnect all ethernet leads and cables to the router. Wait a minute or so and then reconnect all cables and turn on the power. See if your internet starts.

HT4628 My Mac Air OSX10.8.5 won't connect to the internet as it says it has a self assigned IP address and thus cannot connect to the internet. I can only connect to a network by manually typing in the configuration specs. Please help.

My mac air OSX10.8.5 won't connect to the internet. It says it has a 'self assigned IP address and therefore cannot connect to the internet'. Network diagnostics is unable to the solve the problem. It happened suddenly for no reason and now I cannot connect except by typing in the configuration settings manually. Please help me!

Use the Airport Utility or log into your wireless device via http and ensure the DHCP/NAT service is enabled. If accessing via HTTP, you will need to manually set an ip within your local subnet (eg: 192.168.0.x).

Ethernet has a self-assigned IP address and will not be able to connect

Other computers with same hardware and software (MacBook + 10.6) can get online using the same DHCP cable normally but mine can not. The self-assigned IP address refuses to go away no matter what I do. However, if I connect via wireless, everything is normal.
My 10.6 was upgraded a few weeks ago based on 10.5. Things were normal and Ethernet DHCP did work. This network problem suddenly appeared when the computer was functioning completely normal under a DHCP protocol using a cable.
Does anyone observe similar problems? Anyone has any clue about what's going on?
Thanks much!
--- Wei

try this. i had the same problem. found this on another forum:
1. Go to Mac/Library/Preferences/SystemConﬁguration
2. Delete the following:
a. Com.apple.airport.prefrences.plist
b. NetworkInterfaces.plist
c. Preferences.plist
3.Shut down computer
4.reset PRAM (hold commandoption+PR keys down before gray screen when booting up)

My air has a self assigned ip address and will not connect to wifi. I cannot access the wifi through the safari guest account nor my parallels Win 7. I have erased my keychain access, erased the 3files and renewed the DHCP lease. Nothing works. I am on

I

Please read this whole message before doing anything.
This procedure is a diagnostic test. It’s unlikely to solve your problem. Don’t be disappointed when you find that nothing has changed after you complete it.
The purpose of the test is to determine whether the problem is caused by third-party software that loads automatically at startup or login, or by a peripheral device.
Disconnect all wired peripherals except those needed for the test, and remove all aftermarket expansion cards. Boot in safe mode and log in to the account with the problem. Note: If FileVault is enabled, or if a firmware password is set, or if the boot volume is a software RAID, you can’t do this. Ask for further instructions.
Safe mode is much slower to boot and run than normal, and some things won’t work at all, including Wi-Fi on certain iMacs. The next normal boot may also be somewhat slow.
The login screen appears even if you usually log in automatically. You must know your login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin. Test while in safe mode. Same problem? After testing, reboot as usual (i.e., not in safe mode) and verify that you still have the problem. Post the results of the test.

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Open System Preferences/Network
Select the Location you use at home
You may need to click the Padlock bottom left at this point if it's locked, enter the admin password to unlock
In the left hand column drag the Ethernet connection to the top of the list and remove any you don't use
Click the Advanced button bottom right
Click the TCP/IP Tab
Set Configure IPv4 to Using DHCP
Click OK bottom right and you should see the Router IP number appear and a unique but similar one for your Mac
Click Ok then click Apply and close the Panel

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

MacBook Air will not connect to Internet (no problem with other devices). Message states " Wi-Fi has the self assigned IP adresss 169.254.147.1and will not connect to Internet.

First, try restarting the router. If there's no change, hold down the option key and select the Wi-Fi menu in the menu bar. What value is shown for Security?

I getting airport has a self-assigned ip address and may not be able to connect to the internet

I getting airport has a self-assigned ip address and may not be able to connect to the internet

I have got exactly the same message after we re-configured our router. I was connecting using my iMac wirelessly before hand, but now cannot. Our other PCs can connect wirelessly to the router so it's not the router. I have also tried the firewall solution but that doesn't work either.
I did call Apple Support who said that a full troubleshoot would cost £35 as my computer is older than 90 days (well yes it's been working fine that's why it's over 90 days old, it's only now that it isn't!). He said a trouble shoot didn't guarantee success so I declined his offer to charge me an extortionate amount of money for nothing! He did say that the router needs to be giving the Airport an IP address, but it isn't doing it now. His only suggestion was to turn off the router and turn it back on or power down the iMac. Neither of which help.
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My Airpot/Time capsule will not will not connect. It states " AirPort has the self addressed IP address 169.254.231.99 and will not connect to the internet??????l

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What broadband router do you have?
What model Time Capsule do you have?
If you changed the system over from another router.. have you rebooted the entire network.. particularly a cable modem.. did you power off for at least 20min..
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iTunes in Mac OS X Tiger is outdated. Open  > Software Update to install the latest iTunes version for Tiger.
If you need iTunes 10.7 or a newer version, you have to upgrade to Mac OS X Snow Leopard. First, check that your Mac is supported > http://support.apple.com/kb/sp575 If it is, buy Snow Leopard > http://store.apple.com/us/product/MC573Z/A/mac-os-x-106-snow-leopard
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My "airport has the self assigned IP address and will not be able to connect to the internet"

I have tried everything
restarting the computer
renewing the DHCP
deleting the airport then adding a new airport
turning off the airport and deleting the keychain access codes
deleting the systems configuration folder
I dont know what to do anymore.
I can't connect to my home router or my schools secured wifi, but i am able to connect to their public wifi. my iphone connects just fine

System preferences > Network > WiFi/Airport ..
( Assist me ) > ( Assistant )...
and set it up from scratch, including a brand new "Location", not the default.
You must close the window and save changes for them to take effect.
If no joy, look at another one of you devices and post
Router Address and
IP Address and
Subnet mask

"ethernet has a self assigned IP address and will not connect to the internet" - how do i fix this?

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