Dell XPS 15 L521X Driver Download (Official)
The XPS 15 L521X is a network device manufactured by Dell. Issues like weak Wi-Fi signal, slow DNS lookup, duplicate IP addresses, slow network and excessive CPU usage can be solved by updating this driver. This driver - "Network_Driver_KPN5K_WN_Wifi-version-1_A01.EXE" - has been downloaded 14 times and is rated 5 out of 5 stars based on 6 reviews. Compatibility for this driver update includes PCs running Windows operating systems such as Windows 7. The total disk space used for this update is 180.1 MB.
Official Source - Manufacturer Website
Supported Models
XPS 15 L521X
Atheros Bluetooth Bus
Atheros Valkyrie BootROM
Bluetooth A2DP Sink
Bluetooth A2DP Source
Bluetooth AV Remote Control Target
Bluetooth AVRCP Device
Bluetooth Advanced Remote Control Service
Manufacturers
Supported Operating Systems
Windows 7
File Name
Network_Driver_KPN5K_WN_Wifi-version-1_A01.EXE (180.1 MB)
Versions
A01.00 (12-Dec-2013)
Additional Notes
Bluetooth Driver File
Uploaded By
Sharmila (DG Staff Member) on 11-Aug-2017
Related Driver Updates
How to Update XPS 15 L521X Device Drivers
Step 1 - Download Your Driver
To get the XPS 15 L521X driver, click the green download button above. After you complete your download, move on to Step 2.
If the driver listed is not the right version or operating system, search our driver archive for the correct version. Enter Dell XPS 15 L521X into the search box above and then submit. In the results, choose the best match for your PC and operating system.
Tech Tip: If you are having trouble deciding which is the right driver, try the Dell Driver Update Utility. It is a software utility which automatically finds and downloads the right driver.
To find the newest driver, you may need to visit the Dell website. Most major device manufacturers update their drivers regularly.
Step 2 - Install Your Driver
Open a tool called Device Manager.
Use Device Manager to put the new driver on your computer.
Turn your computer off.
Turn your computer back on.
Now your new driver is ready!
Tech Tip: Driver downloads and updates come in a variety of file formats with different file extensions. For example, you may have downloaded an EXE, INF, ZIP, or SYS file. Each file type has a slighty different installation procedure to follow.
For more help, visit our Driver Support Page for step-by-step videos on how to install drivers for every file type.
Driver Contents File List
The following files are found inside the driver download file.
| Name | Size | Date |
|---|---|---|
| Config.ini | 112 bytes | 26 Dec 2012 |
| Install_CD/0x0401.ini | 19.0 KB | 9 Jul 2012 |
| Install_CD/0x0402.ini | 23.5 KB | 9 Jul 2012 |
| Install_CD/0x0404.ini | 10.3 KB | 9 Jul 2012 |
| Install_CD/0x0405.ini | 22.2 KB | 9 Jul 2012 |
| Install_CD/0x0406.ini | 22.8 KB | 9 Jul 2012 |
| Install_CD/0x0407.ini | 24.7 KB | 9 Jul 2012 |
| Install_CD/0x0408.ini | 26.1 KB | 9 Jul 2012 |
| Install_CD/0x0409.ini | 21.5 KB | 9 Jul 2012 |
| Install_CD/0x040a.ini | 24.0 KB | 9 Jul 2012 |
| Install_CD/0x040b.ini | 21.6 KB | 9 Jul 2012 |
| Install_CD/0x040c.ini | 25.0 KB | 9 Jul 2012 |
| Install_CD/0x040d.ini | 18.1 KB | 9 Jul 2012 |
| Install_CD/0x040e.ini | 22.3 KB | 9 Jul 2012 |
| Install_CD/0x0410.ini | 23.8 KB | 9 Jul 2012 |
| Install_CD/0x0411.ini | 14.4 KB | 9 Jul 2012 |
| Install_CD/0x0412.ini | 13.5 KB | 9 Jul 2012 |
| Install_CD/0x0413.ini | 23.8 KB | 9 Jul 2012 |
| Install_CD/0x0414.ini | 22.8 KB | 9 Jul 2012 |
| Install_CD/0x0415.ini | 23.1 KB | 9 Jul 2012 |
| Install_CD/0x0416.ini | 23.0 KB | 9 Jul 2012 |
| Install_CD/0x0418.ini | 23.5 KB | 9 Jul 2012 |
| Install_CD/0x0419.ini | 22.3 KB | 9 Jul 2012 |
| Install_CD/0x041a.ini | 22.4 KB | 9 Jul 2012 |
| Install_CD/0x041b.ini | 22.4 KB | 9 Jul 2012 |
| Install_CD/0x041d.ini | 22.2 KB | 9 Jul 2012 |
| Install_CD/0x041e.ini | 21.6 KB | 9 Jul 2012 |
| Install_CD/0x041f.ini | 22.0 KB | 9 Jul 2012 |
| Install_CD/0x0424.ini | 22.7 KB | 9 Jul 2012 |
| Install_CD/0x0804.ini | 10.3 KB | 9 Jul 2012 |
| Install_CD/0x0816.ini | 23.6 KB | 9 Jul 2012 |
| Install_CD/0x0c04.ini | 10.3 KB | 9 Jul 2012 |
| Install_CD/ISSetup.dll | 580.7 KB | 9 Jul 2012 |
| Install_CD/data1.cab | 131.4 MB | 9 Jul 2012 |
| Install_CD/data2.cab | 31.6 MB | 9 Jul 2012 |
| Install_CD/default.ath | 143 bytes | 2 May 2012 |
| Install_CD/layout.bin | 1.0 KB | 9 Jul 2012 |
| Install_CD/setup.exe | 806.5 KB | 9 Jul 2012 |
| Install_CD/setup.ini | 1.5 KB | 9 Jul 2012 |
| Install_CD/setupconfig.ini | 1.6 KB | 9 Jan 2012 |
| Setup_MUP.exe | 197.2 KB | 26 Dec 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/BthAthFax.inf | 13.8 KB | 9 Jul 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/Bthci.dll | 21.0 KB | 9 Jul 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/DIFxAPI.dll | 525.8 KB | 9 Jul 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/WdfCoInstaller01009.dll | 1.7 MB | 9 Jul 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/athdfu.cat | 7.6 KB | 9 Jul 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/athdfu.inf | 1.9 KB | 9 Jul 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/athdfu.sys | 52.4 KB | 9 Jul 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/atheros_bth.cat | 7.8 KB | 9 Jul 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/atheros_bth.inf | 5.1 KB | 9 Jul 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/athrextx.cat | 46.0 KB | 9 Jul 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/athrx.sys | 2.2 MB | 9 Jul 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/btath_a2dp.cat | 8.0 KB | 9 Jul 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/btath_a2dp.inf | 7.0 KB | 9 Jul 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/btath_a2dp.sys | 341.1 KB | 9 Jul 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/btath_avdt.sys | 111.2 KB | 9 Jul 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/btath_bus.cat | 7.5 KB | 9 Jul 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/btath_bus.inf | 2.0 KB | 9 Jul 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/btath_bus.sys | 30.8 KB | 9 Jul 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/btath_flt.cat | 19.0 KB | 9 Jul 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/btath_flt.inf | 13.8 KB | 9 Jul 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/btath_flt.sys | 36.5 KB | 9 Jul 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/btath_hcrp.cat | 8.0 KB | 9 Jul 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/btath_hcrp.inf | 2.8 KB | 9 Jul 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/btath_hcrp.sys | 168.1 KB | 9 Jul 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/btath_hid.cat | 7.5 KB | 9 Jul 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/btath_hid.inf | 2.3 KB | 9 Jul 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/btath_hid.sys | 358.3 KB | 9 Jul 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/btath_lwflt.cat | 7.5 KB | 9 Jul 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/btath_lwflt.inf | 2.4 KB | 9 Jul 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/btath_lwflt.sys | 68.7 KB | 9 Jul 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/btath_rcp.cat | 7.5 KB | 9 Jul 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/btath_rcp.inf | 2.3 KB | 9 Jul 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/btath_rcp.sys | 281.5 KB | 9 Jul 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/btath_sco.cat | 7.5 KB | 9 Jul 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/btath_vdp.cat | 8.0 KB | 9 Jul 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/btath_vdp.inf | 3.3 KB | 9 Jul 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/btath_vdp.sys | 422.1 KB | 9 Jul 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/btatherosInstall.exe | 69.2 KB | 9 Jul 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/btfaxmdm.cat | 7.5 KB | 9 Jul 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/btfilter.sys | 551.0 KB | 9 Jul 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/bthathfax.sys | 75.9 KB | 9 Jul 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/leath_hid.cat | 7.7 KB | 9 Jul 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/leath_hid.inf | 3.0 KB | 9 Jul 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/leath_hid.sys | 36.6 KB | 9 Jul 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/netathrx.inf | 320.4 KB | 9 Jul 2012 |
| drivers/production/Windows7-x64/WLAN-Driver/athrextx.cat | 8.6 KB | 3 Jul 2012 |
| drivers/production/Windows7-x64/WLAN-Driver/athrx.sys | 3.7 MB | 14 Jun 2012 |
| drivers/production/Windows7-x64/WLAN-Driver/netathrx.inf | 22.4 KB | 3 Jul 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/BthAthFax.inf | 13.8 KB | 9 Jul 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/Bthci.dll | 21.0 KB | 9 Jul 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/DIFxAPI.dll | 319.5 KB | 9 Jul 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/WdfCoInstaller01009.dll | 1.5 MB | 9 Jul 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/athdfu.cat | 7.6 KB | 9 Jul 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/athdfu.inf | 1.9 KB | 9 Jul 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/athdfu.sys | 44.2 KB | 9 Jul 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/atheros_bth.cat | 7.8 KB | 9 Jul 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/atheros_bth.inf | 5.1 KB | 9 Jul 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/athr.sys | 1.7 MB | 9 Jul 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/athrext.cat | 46.0 KB | 9 Jul 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/btath_a2dp.cat | 8.0 KB | 9 Jul 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/btath_a2dp.inf | 7.0 KB | 9 Jul 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/btath_a2dp.sys | 299.6 KB | 9 Jul 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/btath_avdt.sys | 98.4 KB | 9 Jul 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/btath_bus.cat | 7.5 KB | 9 Jul 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/btath_bus.inf | 2.0 KB | 9 Jul 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/btath_bus.sys | 25.7 KB | 9 Jul 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/btath_flt.cat | 19.0 KB | 9 Jul 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/btath_flt.inf | 13.8 KB | 9 Jul 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/btath_flt.sys | 36.0 KB | 9 Jul 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/btath_hcrp.cat | 8.0 KB | 9 Jul 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/btath_hcrp.inf | 2.8 KB | 9 Jul 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/btath_hcrp.sys | 148.1 KB | 9 Jul 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/btath_hid.cat | 7.5 KB | 9 Jul 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/btath_hid.inf | 2.3 KB | 9 Jul 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/btath_hid.sys | 316.2 KB | 9 Jul 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/btath_lwflt.cat | 7.5 KB | 9 Jul 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/btath_lwflt.inf | 2.4 KB | 9 Jul 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/btath_lwflt.sys | 60.5 KB | 9 Jul 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/btath_rcp.cat | 7.5 KB | 9 Jul 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/btath_rcp.inf | 2.2 KB | 9 Jul 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/btath_rcp.sys | 264.4 KB | 9 Jul 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/btath_sco.cat | 7.5 KB | 9 Jul 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/btath_vdp.cat | 8.0 KB | 9 Jul 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/btath_vdp.inf | 3.3 KB | 9 Jul 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/btath_vdp.sys | 412.9 KB | 9 Jul 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/btatherosInstall.exe | 67.2 KB | 9 Jul 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/btfaxmdm.cat | 7.5 KB | 9 Jul 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/btfilter.sys | 469.1 KB | 9 Jul 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/bthathfax.sys | 59.5 KB | 9 Jul 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/leath_hid.cat | 7.7 KB | 9 Jul 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/leath_hid.inf | 2.9 KB | 9 Jul 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/leath_hid.sys | 32.4 KB | 9 Jul 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/netathr.inf | 318.9 KB | 9 Jul 2012 |
| drivers/production/Windows7-x86/WLAN-Driver/athr.sys | 3.0 MB | 14 Jun 2012 |
| drivers/production/Windows7-x86/WLAN-Driver/athrext.cat | 8.6 KB | 3 Jul 2012 |
| drivers/production/Windows7-x86/WLAN-Driver/netathr.inf | 22.3 KB | 3 Jul 2012 |
| install.bat | 37 bytes | 18 Jan 2013 |
| mup.xml | 6.3 KB | 26 Dec 2012 |
| package.xml | 12.1 KB | 20 Jan 2013 |