Device manager and network adapter missing

A common reason a computer will wake up in due to a network adapter.

1. Open Device Manager. To do this open Control Panel and type dev in the search box and click "Device Manager"
2. Expand the list for "Network Adapters"
3. Right-click the adapter to be configured and choose "Properties". There may be several adapters, one for Ethernet, one for wireless, and others like Bluetooth
4. In the dialog that opens, click the tab "Power Management"
5. Remove the check by "Allow this device to wake the computer"
6. Click "OK" and close up Device Manager
   
   1. Open Device Manager. You can do this by opening Contol Panel and typing dev in the search box.
   2. Expand the list for "Network adapters"
   3. Right-click the adapter to be configured and choose "Properties". There may be several adapters, one for Ethernet, one for wireless, and others like Bluetooth
   4. In the dialog that opens, click the tab "Power Management"
   5. Remove the check by "Allow this device to wake the computer"
   6. Click "OK" and close up Device Manager

Greetings,

On a Windows Vista-based computer, the Microsoft ISATAP adapter appears with a yellow exclamation mark (!) next to it in Device Manager.
You can safely ignore this error message. This error message does not indicate a problem with the adapter. The adapter will continue to work correctly.
Check out this article for more information on this:
http://support.microsoft.com/kb/932520
If this is still not working,
First try to reset Winsock from command prompt, this will reset all the Network components to default:
Click on start, type CMD,'Right click and Run as Administrator'.
At the command prompt type:
netsh winsock reset catalog
In such a case, I suspect this problem to be caused by network adapter missing or corrupt. Please firstly reinstall the driver for your wireless network adapter. Then try to reinstall Microsoft ISATAP using following steps:
1.In Device Manger, right-click the item of Microsoft ISATAP and select Uninstall.
2.Still in Device Manager, click Action and select Add legacy hardware.
3.Click Next, and select Install the hardware that I manually select from a list (Advanced), click Next.
4.Select Network Adapters and click Next.
5.Select Microsoft in left panel and Microsoft ISATAP Adapter in the right panel.
6.Click Next and finish the remaining wizard.
In such a case, I suspect this problem to be caused by network adapter missing or corrupt. Please firstly reinstall the driver for your wireless network adapter. Then try to reinstall Microsoft ISATAP using following steps:
1.In Device Manger, right-click the item of Microsoft ISATAP and select Uninstall.
2.Still in Device Manager, click Action and select Add legacy hardware.
3.Click Next, and select Install the hardware that I manually select from a list (Advanced), click Next.
4.Select Network Adapters and click Next.
5.Select Microsoft in left panel and Microsoft ISATAP Adapter in the right panel.
6.Click Next and finish the remaining wizard.


Hope this helps you to solve the issue. Please do vote or provide feedback on this solution, your response will be appreciated.

Thank you and Kind Regards
Gowtam R
FIXYA Solutions Engineer.

Hi Sathomas,

I have found that a similar question was asked and the solution was provided on fixya ,

http://www.fixya.com/support/t3006204-cannot_get_netbook_connect_wireless

Hope this works for you, your feedback would be appreciated.

If you have Windows XP then try this, for Windows 7 and Vista also the procedure is similar. If you have Vista or 7 then tell me I'll post the tutorial for that also.

1. In Windows XP, click the Start button and select Control Panel.
   

2. Click the Network and Internet Connections category.
   

3. Note: If you are using Classic View, you will see the control panel icons instead of categories. Double-click the Network Connections icon.

   
   

   

4. Click the Network Connections control panel icon.

   

5. Double-click Local Area Connection, listed under LAN or High-Speed Internet.
   
   

   

6. When the Local Area Connection Status window is displayed, click the Properties button.

   

7. In the Local Area Connection Properties window, do the following:
   
   • Verify that the Internet Protocol (TCP/IP) box is checked.

   Note: If your Ethernet adapter is not listed in the Connect using box, you need to install your adapter.
   

   • Click Internet Protocol (TCP/IP) once to highlight it and then click the Properties button.

   

8. In the Internet Protocol (TCP/IP) Properties window, do the following:
   
   • Click Obtain an IP address automatically.
     
   • Click Obtain DNS server address automatically.
     

   

Identify your Ethernet card. Click "Start," "Control Panel," "Administrative tools," "Computer Management," then "Device Manager." Look for a field called "Network adapters, and click on it to expand a list of network devices. Right-click the Ethernet device listed and select "Properties." The device type and manufacturer should be listed under the general tab

plz vote :d

Hi,

From Control Panel, goto the Device Manager
Find Network Adapters in the list
Click on it. if you have ethernet card/network adapter it will be listed there.

Hope this helps.

reinstall it. If its not being rediscovered then it is more likely defective and needs replacing/

Hello!

I am not sure exactly where you are checking for Wireless connections.

Anyhow, now a days we are hearing many Wireless adapter missing from Device manager issues.

Please get back to us with the Brand name of your laptop, OS installed.

Also check in Device manager for Wireless adapter.

Please follow these steps to open Device Manager:

1. Right Click on 'My Computer' icon on Desktop and choose Properties.
2. The System properties Window opens.
3. Click Hardware tab and then click the Device Manager button.


Expand + Network adapter and check if the Wireless adapter is listed there or not.

If it is not listed there, then the issue is with the Wireless adapter itself.

This is most comon issue in HP COMPAQ notebooks.

if you are not aware of the Wireless adapter under + Network adapters in Device manager, then get back to us with the complete information under + Network adapter.

So thatI can help you in better way

try Fn+F2 to enable the wireless.

As for the multiple entries in device manager, I'd delete the #2 version

The first thing I'd do is go to the control panel, then select the device manager option. In there, you should see an option for the network adapters - if you open it up, the network adapters on the computer will be listed. If there's a conflict that is preventing the device from running properly, you should see an exclamation point against it.

Another possibility is that the wireless network adapter may just be turned off. In the control panel, go to Network and Internet, then Network and Sharing center. (This applies to Vista; if you are using an earlier OS, it may be different.) From there, click Manage network connections, and you should see a network adapter icon - you can click Enable to turn the device on if it is currently disabled.