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User profile for user: bankleftie
bankleftie Author
User level: Level 1
0 points

MacBook Pro Ethernet Stopped Working after Installing Mavericks

Hello,


Today I installed Mavericks on a Mid-2012 13" MacBook Pro. This was not a fresh install; Mavericks went in over Mountain Lion. After the installation I am unable to connect to the internet via the built-in ethernet port.


WiFi still works- that's how I'm now connected. I can also connect to ethernet using a USB-ethernet adapter (purchased for use with a MacBook Air).


With WiFi off and a cable plugged into the ethernet port, I can ping the MacBook Pro from another computer on the LAN; also I can ping in the other direction. However, I cannot see computers or folders listed in the Shared section of the Finder.


Some kind of low-level functionality appears to be there- in Network in System Preferences I see that ethernet is connected, I'm getting a DHCP-assigned IP address, etc. If I unplug the cable, ethernet instantly switches to "Not Connected".


Just no useful ethernet connection.


Any suggestions?


Thanks!

MacBook Pro, OS X Mavericks (10.9)

Posted on Oct 24, 2013 8:15 PM

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3 replies
User profile for user: jason269
jason269
User level: Community Specialist

Oct 27, 2013 9:32 AM in response to bankleftie

Hi, bankleftie.


Thank you for visiting Apple Support Communities.


I would first start with processing the steps in the article below referring to resetting NVRAM / PRAM.


About NVRAM and PRAM

http://support.apple.com/kb/HT1379


If the issue persists, try going through the steps in the article below.


Mac OS X: Troubleshooting a cable modem, DSL, or LAN Internet connection

http://support.apple.com/kb/TS1317


Cheers,


Jason H.

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User profile for user: bankleftie
bankleftie Author
User level: Level 1
0 points

Oct 27, 2013 3:38 PM in response to jason269

Thanks for your reply.


I solved this problem by switching from DHCP to static IP address, selecting an IP address other than the one already assigned, then manually entering the Subnet Mask, Router, DNS Server, and Search Domains values. I also cleared checkboxes for Web Proxy and Secure Web Proxy.


Immediately, I was able to connect to the internet.


I then switched back to DHCP, to let the automated IP address thing happen, if necessary.


-bankleftie

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MacBook Pro Ethernet Stopped Working after Installing Mavericks

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