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Mid-2007 Mac mini not recognizing Gigabit ethernet
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Mac Elite
Join Date: Jun 2006
Location: Pittsburgh
Status:
Offline
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I have had this Mac mini running since I bought it in 2007, ethernet humming along perfectly on 100base all that time. It currently runs 10.7.5 Server.
I just upgraded the switch to Gigabit and the Mac mini only neogtiates 100base. If I set it to 1000baseT manually in System Preferences->Network->Ethernet->Advanced->Hardware, it just cycles through Cable unplugged and Cable not connected (orange, red light). When set to automatic, it sets to 100base and performs as expected.
The kicker is that I have a late 2006 Macbook (10.6.8) that, when plugged into the same line, negotiates Gigabit just fine. I was transferring files at 80MB/sec. What can I do in this situation? What is the deal here? I know the NIC should be capable of Gigabit, but it refuses to do so.
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Last edited by abbaZaba; Jan 26, 2013 at 12:31 AM.
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Mac Elite
Join Date: Jun 2006
Location: Pittsburgh
Status:
Offline
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This is disheartening. I am at a loss as to why this Mac mini refuses to do gigabit, but apparently I am not alone in this predicament. Pretty salty.
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Posting Junkie
Join Date: Mar 2004
Location: UK
Status:
Offline
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Are you using the same cable for both machines? A damaged cable can reduce speeds.
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I have plenty of more important things to do, if only I could bring myself to do them....
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Mac Elite
Join Date: Jun 2006
Location: Pittsburgh
Status:
Offline
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same cable, same port on the switch. have tried different ports on the switch. have tried different cables. it has to be something with the Mac mini. I have found some threads on Apple Discussion board with issues with Mac mini NIC, but none that exhibit the same symptoms: 100base works perfectly fine, but not gigabit.
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Mac Elite
Join Date: Jan 2003
Location: San Diego
Status:
Offline
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What switch did you upgrade to?
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Mac Elite
Join Date: Jun 2006
Location: Pittsburgh
Status:
Offline
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Trendnet model #TEG-S50G
Remember, the other devices (older and newer) I tried on the same line negotiate Gigabit just fine.
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Posting Junkie
Join Date: Mar 2004
Location: UK
Status:
Offline
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I have a 2007 Mini. I'll plug it into something and see what mine does when I get a sec.
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I have plenty of more important things to do, if only I could bring myself to do them....
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Mac Elite
Join Date: Jun 2006
Location: Pittsburgh
Status:
Offline
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Originally Posted by Waragainstsleep 
I have a 2007 Mini. I'll plug it into something and see what mine does when I get a sec.
Didja get around to that yet?
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Posting Junkie
Join Date: Mar 2004
Location: UK
Status:
Offline
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OK, so I finally got around to it. I had to rebuild the OS since I tried upgrading it to Mountain Lion and it wouldn't boot anymore.
Hooked up to a Draytek Vigor 2850 router the System preferences listed the speed as 1000Base-T.
I transferred a 2.7GB file in about 90 seconds or so. Not blinding but certainly better than 100Mbit.
I was running 10.7.0 I think. Not a clean copy. It was upgraded from 10.7.5 to 10.8 then downgraded again. Hope that helps.
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I have plenty of more important things to do, if only I could bring myself to do them....
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