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I think my iMac's Ethernet port is broken, any suggestions on how to be certain?

1078 Views 1 Reply Latest reply: 02-Feb-2013 14:30 by Allex2501 RSS
nickbUK Calculating status...
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16-Jan-2013 05:02

My 21" iMac (Mid 2010) has always been connected to my router using an ethernet cable. A few days ago the connection dropped, with the Network Preference Pane showing "Cable Unplugged". Since then I have been using the Airport connection, but have been trying to work out what the problem with the wired connection is.

 

I'm very sure that the problem is with the Mac, having tried different cables, both on the iMac and a laptop. All cables work for the laptop, but not the iMac. Even when connecting the laptop and iMac directly, the laptop shows the cable is plugged in, while the iMac continues to report 'Cable Unplugged'.

 

I've tried the Apple Hardware Test, which reports no issues, and a MAC address for the ethernet card. Though System Profiler shows "This computer does not appear to have any PCI Ethernet cards installed".

 

I've deleted the various network .plist files detailed in other threads, with no luck.

 

I tried to create a new network location and set up the connection again, but when trying to add a new service to the new location, 'Ethernet' is absent from the dropdown box.

 

Full specification is as follows:

 

iMac 21.5" Mid-2010

3.06 GHz Core i3

8GB Memory (Apple supplied)

OS Version 10.6.8 (fully updated)

 

Are there any futher things I can try to get the wired connection working again, or has the ethernet card failed completely?

 

Thanks,

Nick

iMac, Mac OS X (10.6.8)

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