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Wireless Connections Not Available - Multiple PC's


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#1 panthersfan25

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Posted 24 October 2014 - 07:50 AM

Good Morning,

 

We have an issue that has come up within the last 48 hours.  At first, one laptop acted like the wireless radio was turned off by displaying a red x over the radio icon.  When clicking on it, it showed no network connections available.  I tried updating drivers, no luck; I tried uninstalling and re-installing the device through device manager.  The wired connection would work perfectly fine.  Finally, we had a recent image of the laptop so I just backed up the files and re-imaged it and everything worked fine, that was 4 days ago.  Now, within the last 48 hours, 6 more laptops are showing up with the same issue and they are on a range of models (All Dell though), and OS's, mainly 7 and 8.1.  Once again wired connections work fine, but even outside our building they cannot connect to wireless and it shows no connections available. 

 

Any ideas what may be causing this?  Malware? Virus? Update?

 

One other thing I did try was to have Windows configure wireless instead of 3rd party software like Dell DWLan, and when I click Apply, it says One or more of your changes was not completed successfully, so it appears something has got a hold of the wireless and not letting go, any ideas how to pinpoint the issue?

 

Please let me know if you need any more information.

 

Thanks,

Brent



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#2 Didier Stevens

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Posted 24 October 2014 - 03:51 PM

The laptop that you re-imaged and then worked fine, is it still working fine? Or did it lose WiFi connections again after a couple of days?

 

Are there any automatic updates going on, besides Windows Update?


Didier Stevens
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SANS ISC Handler
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