Question about Apple USB 2.0 Ethernet Adapter for MacBook Air Laptops

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Apple USB Ethernet suddenly not functional with mac book air

Hi, i have been using the Apple USB Ethernet adapter on my macbook air for years without trouble. Yet, it suddenly doesnt work . I tried a brand new adapter whithout any further success, the computer keeps saying that the cable is not connected, while the internet connection is functioning on another computer. The USB port is also functioning as it can read an external hard drive, and the USB prober softfware detects the USB adapter, yet still the same message: USB ethernet: not connected

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I've run into a similar problem myself. The problem could be that there is another device in the area using the same frequency and is causing interference. Try changing the frequency on your adapter. If you've recently added a wireless device and you can't change the frequency on your adapter try changing the frequency on the new device or turning it off to test if it's the problem.
It's possible someone else in the area has added a device that's causing the problem look around for new wireless devices or antenna in the area.

Posted on May 28, 2010

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Posted on Jan 02, 2017

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Dear Sir,
Welcome to Fixya Support

Resetting Your Password You can reset your administrator password and passwords for all other accounts. To reset your password, using a partner computer and Remote Install Mac OS X:
1 Follow the procedure for using Remote Install Mac OS X
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I f I connect hotel internet via Apple USB 2.0 Ethernet Adapter to my MacBook Air, internet after few minutes disconnected, to connect again i take out the cable, and then plug in, usually internet start...


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Open the System Preferences application, select "Network" and right on the top left of the resulting window there's a pretty big button that will either say "Turn Airport On" or "Turn Airport Off" - just turn it off if it's not already ...

Hope this helps!

For help with Public Address Systems see my new How To Video, available as a DVD at www.whamuniversal.com

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1 Answer

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When troubleshooting a Macbook Air, there is a checklist from Apple Support you need to try.
You are welcome to do so after first trying these steps first.

• Check the Magsafe power adapter, to make sure it is free of debris and is seated properly.

• If with decent charge, try to start the Macbook Air, with only the battery.

If you get power from either one of these issue resolved- otherwise follow the steps provide more in detail from Apple listed in the link below.
-------------------------------------------------------------------
Apple Support Link:
Troubleshooting Macbook Air (additional steps)
-------------------------------------------------------------------
Such power issues with Macbook Airs as well as Macbook 13" and Macbook Pro 13" are about the same and there are no workarounds, so make sure to follow those procedures completely for a full assessment of your Macbook Air's functionality.

Hope this helps!

Regards,

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If you need help with printer drivers... download a copy of Bonjour from apple...it's free and it will find your printers and set it up for you!
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Let me know if this gets you operational
k

Jan 26, 2009 | Apple USB 2.0 Ethernet Adapter for MacBook...

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