Can't turn on WIRELESS on a Dell Latitude E5520

I am working on a Dell Latitude E5520.  The laptop is running Windows 7 Professional.  It has an installed Dell DW1530 Wi - FI card.  The WI - FI card is disabled.  Whenever I try to activate the card, it goes through all the activation of the card queries, but when it's over the map is always disabled and grayed out.  With this laptop, fitness and starting over is not an option. I have seen this problem mentioned earlier in this forum, but none of the fixes offered work.

What I've tried so far.  Troubleshooting everything has been done with full privileges, with domain administrator and local administrator accounts. The first thing I tried was to uninstall the antivirus software and firewall.  I left this software on the laptop computer for troubleshooting all.  I tried to uninstall the drivers for the card.  I downloaded the latest drivers and reinstalled the drivers.  Unsuccessful. I repeated it in safemode, logged on as a local administrator.  Unsuccessful.

I have a similar laptop on-site with a similar wireless card that works.  I installed this card and repeat the steps above.  Unsuccessful.  I have re-installed the original WI - FI card.

I have a USB WIFI card that I know works with Windows 7.  I tried this USB WI - FI card.  Unsuccessful.

Given that 3 types of WI - FI cards do not work, it tells me that it is a problem of Microsoft because all cards WI - FI 3 act exactly the same way.  As usual, Microsoft support site is a great help.

A possible clue.  The connection is named 'Wireless Network Connection 3'.  When I tried to rename the connection to "Wireless network connection", it was rejected saying that this name is already used.  There is no "Wireless Network Connection" not listed, only 'Wireless Network Connection 3 ".  I intend to look in the registry for this hidden connection.

Any suggestions?

I found how to fix this problem, finally.  I used the original Windows 7 installation DVD and made an upgrade in Place.  The Microsoft Article ID: 2255099.  It worked. I was able to save the operating system and all programs and personal files.   I wish that I never thought that earlier.

Thanks a lot for taking the time to help.

Jack

Tags: Dell Products

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