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53 Posts

02-05-2014

Thailand

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Yoga 2 Pro: Wireless Driver gone after System Backup

2014-04-27, 11:34 AM

After doing a system backup the intel wireless n7260 disappeared. I reinstalled it under device managers action and the driver got installed as (2) and not working, meaning the driver 1 must be actually there but is not visible and also not working. I therefore cant get an internet connection or see any available wireless networks. How to get this driver working again?

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16 Posts

04-20-2014

United States

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Re: Yoga 2 Pro: Wireless Driver gone after System Backup

2014-04-27, 15:34 PM

Try uninstalling the driver from the Device Manager and then installing the default driver located in the Lenovo backup partition.

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53 Posts

02-05-2014

Thailand

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  • Message 3 of 21

Re: Yoga 2 Pro: Wireless Driver gone after System Backup

2014-04-27, 23:53 PM

thanks for your reply. I cannot uninstall the driver because I cant see or find it. I also cannot see where the driver is located in the backup partition.

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16 Posts

04-20-2014

United States

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  • Message 4 of 21

Re: Yoga 2 Pro: Wireless Driver gone after System Backup

2014-04-28, 0:43 AM

The default driver is located under Lenovo/drivers/WLAN.

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53 Posts

02-05-2014

Thailand

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  • Message 5 of 21

Re: Yoga 2 Pro: Wireless Driver gone after System Backup

2014-04-28, 5:48 AM

Cant find WLAN under Lenovo/drivers. What I see there is ALSControl, Intel DPTS Driver, Intel Video Driver and WIN.

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53 Posts

11-22-2013

Cyprus

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  • Message 6 of 21

Re: Yoga 2 Pro: Wireless Driver gone after System Backup

2014-04-28, 8:45 AM

You need to enable showing hidden and disconnected deviced in Device Manager.  To do so go to

Computer > Right Click > Properties > Advanced System Settings > Advanced (tab) > Enviroment Variables (button)

 

Once you make it there add the following line in the System Variables by clicking on New:

Variable Name = devmgr_show_nonpresent_devices

Variable Value = 1

 

Restart your computer and go to Device Manager.  Click on View>Show hidden devices.  Now you should be able to see the disconnected wireless adapter.  Uninstall both the old and current and reinstall.  It should no longer show "-2" at the end of the device name...

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53 Posts

02-05-2014

Thailand

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  • Message 7 of 21

Re: Yoga 2 Pro: Wireless Driver gone after System Backup

2014-04-28, 11:44 AM

 

I could see the driver n7260 right away after view-show hidden devices. Now I should uninstall this driver, but before I do that I need to know how to reinstall it again. Please advise how to do this.

 

Here a pic from device manager about the current situation:

http://tinypic.com/r/2ziq109/8

 

As you can see there is now only one driver n7260 as I deleted the second one. But it shows 2 Microsoft ISATAP Adapters - is that normal? I actually tried to delete the second one but could not.

 

By the way, this morning when I checked the Yoga the connection was suddenly on again. However, after shutting down later on and opening again, wireless connections are not available any more, even so I did not do any changes.

 

Please be so kind and let me know exactly what to do now. I am obviously no IT expert. Thanks for your help.

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53 Posts

11-22-2013

Cyprus

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  • Message 8 of 21

Re: Yoga 2 Pro: Wireless Driver gone after System Backup

2014-04-28, 12:54 PM

The "hidden" adapter is the old configuration.  After you delete it press the refresh button in device manager.  It will redetect and install everything again.  When you uninstall the adapter do not select the "Remove driver" option, so that Windows keeps the driver files for the reinstallation.

 

The other option is to NOT press the refresh button and run the intel driver installation program.  That should also do it.  If you don't already have the latest drivers (from intel's website), then this is the option to go and then you should select the "remove driver" option to clean-up your system. 

 

If you are simply lazy to do any of this, then just restart your system and Windows will install the device by itself... However it may not necessarily use the newest driver available.

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53 Posts

02-05-2014

Thailand

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  • Message 9 of 21

Re: Yoga 2 Pro: Wireless Driver gone after System Backup

2014-04-28, 13:24 PM

I have uninstalled the driver. Now I dont know where the refresh button in device manager is.

 

So I was looking into option 2 but dont know where to find the driver installation program.

 

Then I tried option 3 and made a restart. Nothing changed and the driver is still missing.

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53 Posts

11-22-2013

Cyprus

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  • Message 10 of 21

Re: Yoga 2 Pro: Wireless Driver gone after System Backup

2014-04-28, 13:38 PM

Heh... You should have downloaded the driver before you uninstalled the device.

 

Anyway, the refresh I said is actually the "Scan for hardware changes" button.  It is a lens over a computer.  It is the last button in the toolbar...

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