Self assigned IP

kamik423

macrumors newbie
Original poster
Mar 23, 2014
13
0
Hello

We had a meeting of our school robotics club, I brought my MacBookPro with me. When we moved around in the room for a while I plugged my mac into different ethernet cables, connected to the same network. Suddenly Internet pages didn't load anymore. I went into network preferences and it said "self assigned ip". Wifi just works fine. I've already tried most of the internet suggestions, but none really works. Also I don't have acces to the router/Server, since it is lovked away in our school.
If anyone could help, that would be great!
(Also I am in Germany if there is something different about the ethernet there...)
I tried different cables, but it still doesn't work.

Thank you
Kamik423
 

simonsi

macrumors 601
Jan 3, 2014
4,849
716
Auckland
Connect the cable, go into Network Preferences, select your ethernet connection and click "renew lease", if that doesnt get it working then it sounds like that cable isnt connected to a router issuing DHCP or it has run out of ip addresses to issue.
 

leman

macrumors G3
Oct 14, 2008
9,964
4,550
There can be myriad of reasons what is not working. You should talk to your school's IT service, its their job to solve these things.
 

kamik423

macrumors newbie
Original poster
Mar 23, 2014
13
0
Thanks for your answers first of all, but
-I already tried "renew lease"
-It is working fine for everybody else, even my friends laptop
-I am the only mac at my school
-The IT service doesn't have any idea how to help me. I already asked him
(He obly said he could give me a static iP)
 

kamik423

macrumors newbie
Original poster
Mar 23, 2014
13
0
My classmates (windows) laptops just work fine.
The teacher who manages the server stuff has no idea what's going on. I asked him.
Wifi works at home, but we don't have access to the schools system.
 

simonsi

macrumors 601
Jan 3, 2014
4,849
716
Auckland
Has yours ever connected and worked, at school, via ethernet cable?

If not, has your machine ever connected to anything via ethernet cable and worked?
 

kamik423

macrumors newbie
Original poster
Mar 23, 2014
13
0
Sorry, it has been quite a while,

Ethernet at home works fine.
I tried using manual IP, and used the one of the laptop I took the cable from. It says connected and showes the green dot. However loading a web page will tell me "not connected to the internet"

Please help
 

satcomer

macrumors 603
Feb 19, 2008
6,290
928
The Finger Lakes Region
Sorry, it has been quite a while,

Ethernet at home works fine.
I tried using manual IP, and used the one of the laptop I took the cable from. It says connected and showes the green dot. However loading a web page will tell me "not connected to the internet"

Please help
Please go into System Preferences-Network pane, Advanced button, and see if in the DNS tab you are getting DNS that the Windows users are using.