How do I install my thunderbolt to ethernet adapter on OS X Yosemite?

I recently bought a thunderbolt to ethernet adapter for my Macbook Pro. I found that accessing the server is quicker when I have a hard connection. However, when I pull up my system preferences and network connections, my thunderbolt connection will come up but the settings do not properly connect and even when I try to manually connect it, I am unable to connect. Help! Does anyone have any ideas on how to address this issue/resolve it?
Please let me know, thanks!

Hello John,
Welcome to Apple Support Communities.
The article linked below provides information which should help you resolve the issue setting up your Thunderbolt to Ethernet Adapter on your MacBook Pro.
Apple USB or Thunderbolt to Ethernet Adapters: First time setup - Apple Support
Ciao,
-Jason

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Open terminal and type the followings;
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2) Type your password to confirm
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enel

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http://support.apple.com/kb/ht3559

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http://cloudtidings.com/2013/11/20/removing-the-ghost-hyper-v-vnic-adapter-when-using-converged-networks-after-in-place-upgrade-to-w2012r2/
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Vendor Name:          Apple, Inc.
Device Name:          Macintosh
UID:          0x0001000D1290C120
Firmware Version:          11.1
Port:
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Link Controller Firmware Version:          0.11.4
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Link Controller Firmware Version:          0.11.4
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Vendor Name:          Apple, Inc.
Device Name:          Thunderbolt to Gigabit Ethernet Adapter
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Device ID:          0x8003
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UID:          0x000100020059EBB0
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Firmware Version:          5.5
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~Yagnesh

yagneshg wrote:
I was looking for a guide which would talk about how to configure your network in case if you have only 1 Ethernet adapter. Just enable the "Virtual Machine" role on the Management network that is automatically connected. You will then be able to add guest vNICs to the same network.
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It is a TB-to-Ethernet adapter, not an Ethernet-to-TB adapter. There are protocol issues, too. A TB-to-Ethernet adapter takes Ethernet frames in/out and passes them to your Mac's TB bridge (you can see it in System Preferences -> Network). The Ethernet port/driver cannot convert ethernet frames into TB packets.
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How do I install my thunderbolt to ethernet adapter on OS X Yosemite?

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