Self assigned IP address

Greetings All,

I have resolved this by dropping the network from mac System Preferances >> Network >>Advance >> Choose the network you are attempting to log into and click the - (minus sign) . This allowed me to re login to the network and i was assigned a new IP address using DCHP.

Best luck,

Mark

I am having this same issue here. Trying to use my works wifi which worked perfectly fine for weeks, now all of a sudden I am getting this error.

I'm connecting my iMac via ethernet and developed this problem recently. Tried loads of different things, deleting files from Library etc, adjusting settings on my router etc.

Turns out my problem was down to the way I connected to the ethernet port. I had connected via a powerline which was plugged into an extension socket by my computer. I never experienced a problem until I connected another device in the network to another powerline in another room. I'm not sure why, but my network did not like the introduction of another powerline device.

I solved the problem by making sure all of my powerline units were plugged into a mains wall socket, instead of extension sockets. I bought new pass-through power line units and plugged the extension leads into them. Since then I haven't had a problem with a self-assigned IP.

I know this won't solve everyones problem as some are experiencing issues over wifi, but if you connect via Ethernet, use powerlines in extension sockets and are experiencing problems, maybe try this. (Side note: since reading about this all powerline manufacturers do say to plug their device into a wall socket, not an extension socket)

I tried your solution in desperation rather than expectation and it worked. I can't think of one good reason why it would work but it did. Thank you so much.

Ericdy, or somebody, please explain the keychain access bit better - what do I click on when I open it?? I can't see what it is I should delete ... going mad, please help!

I had a similar problem when I was switching my phone service from an Internet phone to a cable phone. After two device changes and 3 days on the phone with the cable company, trying to use the new phone modem and have all my wi-fi devices work, I finally added my internet phone modem back in between my cable modem and my Airport Time Capsule. It occurred to me that my setup wanted it. Now all my wi-fi devices can, again, connect to the Internet and work great. Thankfully, I own the internet phone modem.

Thanks dude, just created a communities account just to come and thank you for this simple and cool solution, the rest were just too much.

OK i have just had 3 hours of **** with this!

This worked for me, so thought I would put on here:

1. remove firewall (preferences/security)

2. create a new network and enter new details (see post above)

3. most importantly, on advanced tab, go to to TCP/IP and select use DHCP with manual adress

4. Then enter a new IP address. You can copy one from another computer but just change the last digit by a couple of numbers.

Hello, Ian,

I hope you've updated to OS X El Capitan and hope not you have any worries, regarding Wi Fi.

If not, keep on reading...

Actually, I too had this issue and I use a Wi Fi DataCard. First, I needed to connect he DataCard via USB to my MacBook Air (India) in order to use it, like Ethernet connection. I used to try plugging the DataCard into Wall through the provided Pin and was never able to connect to Internet, as in System Preferences>Network>Wi Fi, it always told, Wi Fi has the Self-assigned IP Address x.x.x.x and cannot access the Internet.

I was just unhappy and googled for solution, didn't get any fruitful blog which told me how to do what I want.

This is what I did to get the task done and now I can use Internet via Wi Fi, without connecting it to Mac directly:

1. You should be having a Mobile, probably, iPhone as I do. Make sure you've connected your Mobile to that Wi Fi network.

2. On your Mobile, go to Wi Fi Settings and connect to Wi Fi and tap the 'i' key or whatever to view the IP Address. It should start with 192.x.x.x.

3. Go to Mac, open System Preferences>Network>Wi Fi. Go to Advanced. Go to TCP/IP.

There you find Configure IPv4 and it should be set to Using DHCP. Select it, from the dropdown list, choose, Manually.

4. Then, you'll get a permission to edit IP Address, Subnet Mask and Router. Enter the information of Wi Fi, as on your Mobile, like IP Address and Router. Note that, you must enter the IP Address correctly, in the last part of IP Address, enter only the first digit.

Eg., my IP Address is 192.168.1.105. Just enter 192.168.1.1.

Enter Subnet Mask and Router without any changes.

5. Now, go to Hardware, in the same page, check if Configure is set to Automatically or not. If not set, set it to Automatically.

6. Go to DNS and press '+' symbol in bottom and add the DNS as found in your Mobile Phone's Wi Fi information Page. Note that, the DNS is as same as your Router.

7. Come back to DCP/IP and click Renew DHCP Lease and after that, change Configure IPv4 back to Automatically and Renew DHCP Lease again.

8. Click OK and then click Apply.

9. Try to connecting your Mac to Wi Fi. If not able to connect, go to step 4, where I told to enter only the first digit of last part of your IP. Enter the complete IP Address. Click OK and Apply. Forget not to set Manually back to Automatically and Renew DHCP License.

10. Try once again and this time, it should work.

P.S., I don't use Apple AirPort.

Now, I'm able to connect to Wi Fi network and this saves a lot of Battery.

Good Luck,

Niteesh.

I had this issue recently after purchasing a new modem.

iPhone nor MBP would connect to the internet through my time machine bridged off my new ARRIS Modem

I tried all the solutions (Forgetting Time Machine, DHCP lease reset) that have been posted before me and none worked. Finally I called apple and they had a quick solution for me.

>AirPort Utilities> Select Wireless Device> Edit> Network> Router Mode> DHCP and Nat

Within this network menu somehow my time capsule had gotten switched to bridge.. I felt really dumb when they lead me to this simple solution. Hope this can help someone else.

i am going through the same problem at the moment can any 1 help me with it. i am stucked..

Thank you so much. This worked for me.

Thank you so much! I was approaching deadlines and couldn't connect to the Wi-Fi.. It was so nerve wrecking! This finally helped me! You're a life saver.. Again Thank you so much!

Thanks for the random string of numbers solution. It worked for my old iMac.