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NIC wont detect ethernet cable?


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matteroll's Avatar
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08-Aug-2012, 08:27 AM #1
NIC wont detect ethernet cable?
Hey guys, I am having a problem with my Realtek RTL8168D/8111D PCI-E Gigabit Ethernet NIC. It is not detecting my ethernet cable, and thus leaving me without internet on my desktop, after i updated its driver. The cable is not the problem as I have tested the cable with my laptop. I tried rolling back drivers, doing system restore and removing drivers with driversweeper and letting windows install the drivers again. However, none of these worked for me. I doubt the NIC is faulty as it was working before i updated the drivers. Anymore things I can try? Oh yea, I'm using windows 7 home premium 64-bit.

Thanks in advance .
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08-Aug-2012, 09:10 AM #2
Quote:
It is not detecting my ethernet cable
You are getting "Media disconnected" or "cable unplugged," right? Usually means defective cable or NIC.

Quote:
The cable is not the problem as I have tested the cable with my laptop.
Do you realize that gigabit ethernet uses all eight wires while 10/100 Mbps ethernet uses only four? Does your laptop have gigabit?
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08-Aug-2012, 09:26 AM #3
yes my laptop does have gigabit ehternet.
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08-Aug-2012, 11:14 AM #4
fixed it by changing the duplex to 100mbps. Got another question though. Why does the NIC only detect the cable when under 100mbps? I tried to have the duplex go to 1gbps but it would say that the cable is unplugged (I have a 150mbps internet plan). Anyone knows why?
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08-Aug-2012, 11:30 AM #5
"Duplex" can't be 100mbps, what you changed is the interface speed. Duplex can only be "full" or "half".

Regarding your question: What device are you connecting to?
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08-Aug-2012, 11:51 AM #6
haha i meant the duplex & speed option sorry :P. And its just desktop with a wired connection to my router/modem (its a 2 in 1 type of thing).
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08-Aug-2012, 03:15 PM #7
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Why does the NIC only detect the cable when under 100mbps?
What precisely do you mean by the NIC "not detecting"?
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08-Aug-2012, 04:43 PM #8
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Originally Posted by TerryNet View Post
What precisely do you mean by the NIC "not detecting"?
Yeap. Sorry for the really broken english.
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09-Aug-2012, 05:15 AM #9
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Originally Posted by matteroll View Post
haha i meant the duplex & speed option sorry :P. And its just desktop with a wired connection to my router/modem (its a 2 in 1 type of thing).
Could you post manufacturer and model, please?
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09-Aug-2012, 08:51 AM #10
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Originally Posted by Lutia View Post
Could you post manufacturer and model, please?
The router is the Zhone zNID-GE-2426 and the NIC, as stated above, is the Realtek RTL8168D/8111D PCI-E Gigabit Ethernet. Even though it says "PCI-E", it is an onboard NIC. My motherboard is the MSI X58-GD65.
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