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Help with built in Ethernet


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Hi gurus. I need to figure out how to use my build in ethernet instead of an wifi dongle.This is what i got from the System profiler :

Built-in Ethernet:


Type: Ethernet

Hardware: Ethernet

BSD Device Name: en2

IPv4 Addresses:



Configuration Method: DHCP

Interface Name: en2


Subnet Masks:


Configuration Method: Automatic


Server Addresses:

DHCP Server Responses:

Domain Name Servers:

Lease Duration (seconds): 0

DHCP Message Type: 0x05


Server Identifier:

Subnet Mask:


Proxy Configuration Method: Manual

ExcludeSimpleHostnames: 0

FTP Passive Mode: Yes

Auto Discovery Enabled: No


MAC Address: 00:1b:11:e8:02:eb

Media Options:

Media Subtype: autoselect



Any help is greatly appreciated.Thanks

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What motherboard do you have? Is the LAN controller marvell or nforce or what?


On my AMD machine, this helped me but it may be irrelevant to you (don't know what motherboard you have):

Go into the BIOS settings and disable 1394 (firewire).

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well, based on your list of the network card, it looks like your network see the router and your machine was assigned an ip address of


open teminal and type ping


If it response with something like Reply from Bytes=32 time=1ms TTL=244


then you are connect to your router and the next issue would be DNS problems

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How do i check this out ? And what will disabling firewire in bios do?

Donw35 i got this response from terminal:

PING ( 56 data

bytes64 bytes from icmp_seq=0 ttl=64 time=1.741 ms64 bytes from icmp_seq=1 ttl=64 time=2.551 ms64 bytes from icmp_seq=2 ttl=64 time=1.426 ms64 bytes from icmp_seq=3 ttl=64 time=1.283 ms64 bytes from icmp_seq=4 ttl=64 time=1.133 ms64 bytes from icmp_seq=5 ttl=64 time=1.976 ms

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And what will disabling firewire in bios do?

Well, everyone I know with the A8N32 SLI Deluxe (including myself) had extremely slow ethernet until disabling 1394. To be honest I'm not entirely sure why this makes a difference, but its worth a try :)

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ok, you are connected to your network based on your ping results, next try this...


in terminal ping www.apple.com


if that does not work then your problem is a DNS issue. if your are using a cable or dsl line then your DNS would be assigned when you turn on your cable moben and router.


you have reset your calble/dsl modem and router right ?

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