Sidebar Sidebar
Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.

Self assigned ip address

1

19nffc97

macrumors newbie
Original poster
Jun 26, 2012
27
2
Nottingham, England
Hi, I live in an old house with thick walls and it's tricky to get a wifi signal so I'm using Ethernet with power line adapters. I have been using them for around 8 months and occasionally I would get the message 'your computer has s self assigned up address and will not be able to connect to the Internet'. Usually I reboot the router and all works again however since yesterday I got the message but no amount of reboots enable me to connect to the Internet. I have tried rebooting the router, computer and adapters but no joy.

Tonight I tried changing the IP address in system pref > network > Ethernet to 192.168.65.8, now the Ethernet say connected and is green but I still can't load any pages.

I'm running El Capitan on a 13" mid 2012 MacBook Pro, any ideas?

Thanks
 
satcomer said:
The put Google Public DNS of 8.8.8.8 .
Click to expand...

No change unfortunately. Just to be clear under 'configure IPv4' I have 'using DHCP' selected. I don't know too much about ip's etc but if I change to 'using DHCP with manual address' and put in the same first 2 numbers and 2 random send numbers the status then goes to connected and the light goes green but I still can't connect. This is after I enter the 8.8.8.8 as DNS seever
[doublepost=1465247355][/doublepost]I have just connected via Ethernet directly into the router. The connection comes straight in with the values as follows:

ConfigureIPv4: using DCHP
IP Adress: 192.168.1.138
Subnet mask: 255.255.255.0
Router: 192.168.1.1

I then went back and connected via the power line adapters and got the same self assigned up message so I entered the exact same figures manually as when I was connected directly to the router. I can't connect, still get the self assigned ip message.
 
I've seen this issue a few times before on various Mac, please try this and let me know if it works.

To reset the firewall, go to the /Macintosh HD/Library/Preferences/ folder and remove the file called "com.apple.alf.plist,"
 
Hi Dan, Thanks for the reply.

It ended up being something a lot simpler, after power cycling the power line adapter connected to the laptop and checking all sorts of settings on my computer it turned out that the master power line adapter that connects directly to the router had locked up, a simple power cycle did the trick.

Rich
 
That was going to be my suggestion several days ago, but I didn't post because in your first posting you said that you'd rebooted everything, which I took to mean literally everything.

I had seen that happen -- what you experienced -- and had fixed it that way.
 
  • Like
Reactions: 19nffc97
monokakata said:
That was going to be my suggestion several days ago, but I didn't post because in your first posting you said that you'd rebooted everything, which I took to mean literally everything.

I had seen that happen -- what you experienced -- and had fixed it that way.
Click to expand...

Yes sorry about that, I thought I had but overlooked the most obvious thing.
 
19nffc97 said:
Hi, I live in an old house with thick walls and it's tricky to get a wifi signal so I'm using Ethernet with power line adapters. I have been using them for around 8 months and occasionally I would get the message 'your computer has s self assigned up address and will not be able to connect to the Internet'. Usually I reboot the router and all works again however since yesterday I got the message but no amount of reboots enable me to connect to the Internet. I have tried rebooting the router, computer and adapters but no joy.

Tonight I tried changing the IP address in system pref > network > Ethernet to 192.168.65.8, now the Ethernet say connected and is green but I still can't load any pages.

I'm running El Capitan on a 13" mid 2012 MacBook Pro, any ideas?

Thanks
Click to expand...

Just had the same thing and changing the cables sorted it.
 
19nffc97 said:
Hi Dan, Thanks for the reply.

It ended up being something a lot simpler, after power cycling the power line adapter connected to the laptop and checking all sorts of settings on my computer it turned out that the master power line adapter that connects directly to the router had locked up, a simple power cycle did the trick.

Rich
Click to expand...

Hi! May I know exactly how you did the power cycling? What are the steps? Thank you.
 
You must log in or register to reply here.
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.
Top Bottom
Back