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No Network Adapter in Device Manager

Last response: in Windows 7
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January 6, 2013 2:27:32 PM

:hello:  Hello guys, I'm really newb to this computer stuff so please help me out here. So early on, I noticed that I don't have any Internet connection (red x) but my laptop seems to have Internet connection. I checked my Device Manager and it seems that Network Adapter is missing instead there is 'Other Device' and below it was a 'Unknown Device' (with a yellow exclamation mark). I tried to install the driver but no luck via USB. I also did a system restore point but still no luck. I also tried to 'Scan for hardware changes' and still again, no luck... It's still unknown device.

I searched the Internet and they said the resetting the CMOS will solve this problem, is this true?

My specs:

Processor: AMD Athlon II x2 250 3.00GHz
Motherboard: EMX-AMD880HD3-PRO (Emaxx Technology)
RAM: 4.00GB
GPU: Sapphire Radeon HD 6670 1GB GDDR5 (OCed - is this safe?)
PSU: 600w
Operating System: Windows 7 Ultimate SP1 64-bit

Please comment below if you are still lacking information. I really want to fix her, she's my gal :D  and sorry for my bad English. Thanks :) 
a b $ Windows 7
January 6, 2013 2:32:21 PM

You need to find drivers for the network adapter.

Try downloading them from the motherboard manufacturer's website and installing them manually.
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January 6, 2013 2:39:51 PM

I tried to install the driver (Realtek Network Controller) via USB from the manufacturer's website and when it got finished a box pop-up saying 'The Realtek Network Adapter/Controller was not found. If Deep Sleep Mode is Enabled Please Plug the Cable' and it didn't fixed the problem, it's still an unknown device with the yellow exclamation.
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a b $ Windows 7
January 6, 2013 2:44:00 PM

Check you are installing the rdivers for the right device. Google the device IDs (in properties in device manager)
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January 6, 2013 2:48:14 PM

Oh, and also, when I go to the properties > details of the unknown device the value says *SysToolDevice, I don't know what this mean.
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a b \ Driver
a b $ Windows 7
January 6, 2013 3:00:50 PM

That message is normal, what is means is that when the system has done its post, it could not find a lan cable connected to pc and router, so put the device into a deep sleep, which the driver has issue then trying to detect the hardware.

So the answer is just to wire up it up so the driver can be installed, the right driver should be on the motherboard CD.
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January 7, 2013 6:39:56 AM

Sorry for the very late reply.

I have one more problem. I checked the box of my motherboard awhile ago and I didn't find any CD, I don't know if I lost it. Is there any other way besides installing from motherboard CD?
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January 7, 2013 10:52:34 AM

Guys? Any help? I still don't have Internet in my desktop ._.
It's been like this since yesterday
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a b $ Windows 7
January 7, 2013 1:01:33 PM

Download the driver on another compputer and put it on a stick/disk
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March 13, 2014 2:09:34 AM

Had same problem - no network adapter in device manager. Found answer - network device were disabled in bios.
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June 6, 2014 10:05:46 AM

anonrab said:
Had same problem - no network adapter in device manager. Found answer - network device were disabled in bios.


How did you do that?
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August 23, 2014 8:57:50 PM

I am currently having the same problem.
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!