Can't find the wireless network adapter in my Latitude E5520 laptop

 BhushanKashyap,

To turn the wifi/Bluetooth on press FN+F2 .You may need to reinstall the drivers to see if that will resolve the issue. Click the link below and select your OS to download the drivers for your system.

http://dell.to/1GsM3kn

Hello Jesse,

First of all thanks a lot for the reply. I tried the switch as well as tried even installing the drivers in (safe mode too) but it didn't work. It failed abruptly and this is the log I got once it is stopped.

[06/11/15 09:29:41] Update Package Execution Started
[06/11/15 09:29:41] Original command line: "C:\Documents and Settings\ntr\Desktop\Network_Driver_9G03W_WN_15.03.1000.1637_A04.EXE"
[06/11/15 09:29:42] DUP Framework EXE Version: 3.0.93.1
[06/11/15 09:29:42] DUP Release: 9G03WX00-00
[06/11/15 09:29:42] Intializing framework...
[06/11/15 09:29:45] logo.png
[06/11/15 09:29:49] User Command: attended
[06/11/15 09:29:49] DUP Capabilities Value: 6291455 (0x5FFFFF)
[06/11/15 09:29:49] DUP Vendor Software Version: 15.03.1000.1637
[06/11/15 09:29:49] Local System/Model Compatible with this Package? Yes
[06/11/15 09:29:49] Local System OS Version: 5.1.3.0
[06/11/15 09:29:49] OS Compatible with this Package? Yes
[06/11/15 09:29:49] Local System OS Language: EN
[06/11/15 09:29:49] Language Compatible with this Package? Unknown
[06/11/15 09:30:31] Identified Behavior : attended
[06/11/15 09:30:31] Temporary payload log file name: C:\Documents and Settings\All Users\Application Data\dell\drivers\Network_Driver_9G03W_WN_15.03.1000.1637_A04\DUPD.tmp
[06/11/15 09:30:31] Translated Command Line : mup.exe /l:"C:\Documents and Settings\All Users\Application Data\dell\drivers\Network_Driver_9G03W_WN_15.03.1000.1637_A04\DUPD.tmp"
[06/11/15 09:30:31] Path : C:\Documents and Settings\All Users\Application Data\dell\drivers\Network_Driver_9G03W_WN_15.03.1000.1637_A04
[06/11/15 09:30:31] Identified Behavior : attended
[06/11/15 09:30:32] Append Vendor Software Log: C:\Documents and Settings\All Users\Application Data\dell\drivers\Network_Driver_9G03W_WN_15.03.1000.1637_A04\DUPD.tmp
[06/11/15 09:30:32]
--- Start of Vendor Software Log ---

[06/11/15 09:30:32] ASCII payload log file detected.
[06/11/15 09:30:32] ****************************************
MUP started: Thu Jun 11 09:30:31 2015

Command Line: C:\Documents and Settings\All Users\Application Data\dell\drivers\Network_Driver_9G03W_WN_15.03.1000.1637_A04\mup.exe /l:C:\Documents and Settings\All Users\Application Data\dell\drivers\Network_Driver_9G03W_WN_15.03.1000.1637_A04\DUPD.tmp
****************************************
MUP Package contains version: 15.03.0000
Execute: setup.exe
Error: Failed to execute setup.exe
Error in ExecuteProgram(): ExecuteProgram failed: 193
MUP finished: Thu Jun 11 09:30:32 2015

Exiting with Return Code: 193

[06/11/15 09:30:32]
--- End of Vendor Software Log ---

[06/11/15 09:30:32] Vendor Software Return Code: 193
[06/11/15 09:30:35] logo.png
[06/11/15 09:30:35] (MUPXMLParser::GetResultName): *** Vendor Return Code is not found in Mup.xml
[06/11/15 09:30:35] Name of Exit Code:
[06/11/15 09:30:35] (DupAPI::GetReturnCode): *** Unable to find DUP value for:
[06/11/15 09:30:35] Exit Code set to: 1 (0x1)
[06/11/15 09:30:35] Result: FAILURE
[06/11/15 09:30:39] Open file: C:\Documents and Settings\All Users\Application Data\Dell\UpdatePackage\Log\Network_Driver_9G03W_WN_15.03.1000.1637_A04.txt
[06/11/15 09:31:18] (MUPXMLParser::GetResultName): *** Vendor Return Code is not found in Mup.xml
[06/11/15 09:31:18] Name of Exit Code:
[06/11/15 09:31:18] (DupAPI::GetReturnCode): *** Unable to find DUP value for:
[06/11/15 09:31:18] Execution terminated at date-time 06/11/15 09:31:18
[06/11/15 09:31:18] ######

਍਍[06/11/15 09:51:52] Update Package Execution Started
[06/11/15 09:51:52] Original command line: "C:\Documents and Settings\ntr\Desktop\Network_Driver_9G03W_WN_15.03.1000.1637_A04.EXE"
[06/11/15 09:51:52] DUP Framework EXE Version: 3.0.93.1
[06/11/15 09:51:52] DUP Release: 9G03WX00-00
[06/11/15 09:51:52] Intializing framework...
[06/11/15 09:51:52] logo.png
[06/11/15 09:51:54] User Command: attended
[06/11/15 09:51:54] DUP Capabilities Value: 6291455 (0x5FFFFF)
[06/11/15 09:51:54] DUP Vendor Software Version: 15.03.1000.1637
[06/11/15 09:51:54] Local System/Model Compatible with this Package? Yes
[06/11/15 09:51:54] Local System OS Version: 5.1.3.0
[06/11/15 09:51:54] OS Compatible with this Package? Yes
[06/11/15 09:51:54] Local System OS Language: EN
[06/11/15 09:51:54] Language Compatible with this Package? Unknown
[06/11/15 09:52:04] Identified Behavior : attended
[06/11/15 09:52:04] Temporary payload log file name: C:\Documents and Settings\All Users\Application Data\dell\drivers\Network_Driver_9G03W_WN_15.03.1000.1637_A04\DUP4.tmp
[06/11/15 09:52:04] Translated Command Line : mup.exe /l:"C:\Documents and Settings\All Users\Application Data\dell\drivers\Network_Driver_9G03W_WN_15.03.1000.1637_A04\DUP4.tmp"
[06/11/15 09:52:04] Path : C:\Documents and Settings\All Users\Application Data\dell\drivers\Network_Driver_9G03W_WN_15.03.1000.1637_A04
[06/11/15 09:52:04] Identified Behavior : attended
[06/11/15 09:52:05] Append Vendor Software Log: C:\Documents and Settings\All Users\Application Data\dell\drivers\Network_Driver_9G03W_WN_15.03.1000.1637_A04\DUP4.tmp
[06/11/15 09:52:05]
--- Start of Vendor Software Log ---

[06/11/15 09:52:05] ASCII payload log file detected.
[06/11/15 09:52:05] ****************************************
MUP started: Thu Jun 11 09:52:05 2015

Command Line: C:\Documents and Settings\All Users\Application Data\dell\drivers\Network_Driver_9G03W_WN_15.03.1000.1637_A04\mup.exe /l:C:\Documents and Settings\All Users\Application Data\dell\drivers\Network_Driver_9G03W_WN_15.03.1000.1637_A04\DUP4.tmp
****************************************
MUP Package contains version: 15.03.0000
Execute: setup.exe
Error: Failed to execute setup.exe
Error in ExecuteProgram(): ExecuteProgram failed: 193
MUP finished: Thu Jun 11 09:52:05 2015

Exiting with Return Code: 193

[06/11/15 09:52:05]
--- End of Vendor Software Log ---

[06/11/15 09:52:05] Vendor Software Return Code: 193
[06/11/15 09:52:06] logo.png
[06/11/15 09:52:06] (MUPXMLParser::GetResultName): *** Vendor Return Code is not found in Mup.xml
[06/11/15 09:52:06] Name of Exit Code:
[06/11/15 09:52:06] (DupAPI::GetReturnCode): *** Unable to find DUP value for:
[06/11/15 09:52:06] Exit Code set to: 1 (0x1)
[06/11/15 09:52:06] Result: FAILURE
[06/11/15 09:52:10] Open file: C:\Documents and Settings\All Users\Application Data\Dell\UpdatePackage\Log\Network_Driver_9G03W_WN_15.03.1000.1637_A04.txt
[06/11/15 09:53:34] (MUPXMLParser::GetResultName): *** Vendor Return Code is not found in Mup.xml
[06/11/15 09:53:34] Name of Exit Code:
[06/11/15 09:53:34] (DupAPI::GetReturnCode): *** Unable to find DUP value for:
[06/11/15 09:53:34] Execution terminated at date-time 06/11/15 09:53:34
[06/11/15 09:53:34] ######

਍਍[06/11/15 09:58:16] Update Package Execution Started
[06/11/15 09:58:16] Original command line: "C:\Documents and Settings\ntr\Desktop\Network_Driver_9G03W_WN_15.03.1000.1637_A04.EXE"
[06/11/15 09:58:16] DUP Framework EXE Version: 3.0.93.1
[06/11/15 09:58:16] DUP Release: 9G03WX00-00
[06/11/15 09:58:16] Intializing framework...
[06/11/15 09:58:16] logo.png
[06/11/15 09:58:22] User Command: attended
[06/11/15 09:58:22] DUP Capabilities Value: 6291455 (0x5FFFFF)
[06/11/15 09:58:22] DUP Vendor Software Version: 15.03.1000.1637
[06/11/15 09:58:22] Local System/Model Compatible with this Package? Yes
[06/11/15 09:58:22] Local System OS Version: 5.1.3.0
[06/11/15 09:58:22] OS Compatible with this Package? Yes
[06/11/15 09:58:22] Local System OS Language: EN
[06/11/15 09:58:22] Language Compatible with this Package? Unknown
[06/11/15 09:58:32] Identified Behavior : attended
[06/11/15 09:58:32] Temporary payload log file name: C:\Documents and Settings\All Users\Application Data\dell\drivers\Network_Driver_9G03W_WN_15.03.1000.1637_A04\DUP5.tmp
[06/11/15 09:58:32] Translated Command Line : mup.exe /l:"C:\Documents and Settings\All Users\Application Data\dell\drivers\Network_Driver_9G03W_WN_15.03.1000.1637_A04\DUP5.tmp"
[06/11/15 09:58:32] Path : C:\Documents and Settings\All Users\Application Data\dell\drivers\Network_Driver_9G03W_WN_15.03.1000.1637_A04
[06/11/15 09:58:32] Identified Behavior : attended
[06/11/15 09:58:32] Append Vendor Software Log: C:\Documents and Settings\All Users\Application Data\dell\drivers\Network_Driver_9G03W_WN_15.03.1000.1637_A04\DUP5.tmp
[06/11/15 09:58:32]
--- Start of Vendor Software Log ---

[06/11/15 09:58:32] ASCII payload log file detected.
[06/11/15 09:58:32] ****************************************
MUP started: Thu Jun 11 09:58:32 2015

Command Line: C:\Documents and Settings\All Users\Application Data\dell\drivers\Network_Driver_9G03W_WN_15.03.1000.1637_A04\mup.exe /l:C:\Documents and Settings\All Users\Application Data\dell\drivers\Network_Driver_9G03W_WN_15.03.1000.1637_A04\DUP5.tmp
****************************************
MUP Package contains version: 15.03.0000
Execute: setup.exe
Error: Failed to execute setup.exe
Error in ExecuteProgram(): ExecuteProgram failed: 193
MUP finished: Thu Jun 11 09:58:32 2015

Exiting with Return Code: 193

[06/11/15 09:58:32]
--- End of Vendor Software Log ---

[06/11/15 09:58:32] Vendor Software Return Code: 193
[06/11/15 09:58:33] logo.png
[06/11/15 09:58:33] (MUPXMLParser::GetResultName): *** Vendor Return Code is not found in Mup.xml
[06/11/15 09:58:33] Name of Exit Code:
[06/11/15 09:58:33] (DupAPI::GetReturnCode): *** Unable to find DUP value for:
[06/11/15 09:58:33] Exit Code set to: 1 (0x1)
[06/11/15 09:58:33] Result: FAILURE
[06/11/15 09:58:36] Open file: C:\Documents and Settings\All Users\Application Data\Dell\UpdatePackage\Log\Network_Driver_9G03W_WN_15.03.1000.1637_A04.txt

I guess this is something related to the chip and nothing with the driver. Please confirm.

OR

If I am not installing the correct one, please let me know which is that specific driver so that I can even try with that.

Best regards,
Nagabhushan T R