The Inspiron 3421 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 version of "Network_Driver_K21VK_WN_9.2.0.512_A02.EXE" has been downloaded 69 times with a user rating of 1 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 175.3 MB.
Inspiron 3421
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
Windows 7, Windows 7 (64 bit)
Network_Driver_K21VK_WN_9.2.0.512_A02.EXE (175.3 MB)
9.2.0.512 (30-Sep-2015)
Bluetooth Driver File
Sharmila (DG Staff Member) on 20-Sep-2017
BTHENUM\{00001106-0000-1000-8000-00805F9B34FB}
BTHENUM\{00001109-0000-1000-8000-00805F9B34FB}
BTHENUM\{0000110A-0000-1000-8000-00805F9B34FB}
BTHENUM\{0000110B-0000-1000-8000-00805F9B34FB}
BTHENUM\{0000110C-0000-1000-8000-00805F9B34FB}
BTHENUM\{0000110D-0000-1000-8000-00805F9B34FB}
BTHENUM\{0000110E-0000-1000-8000-00805F9B34FB}
BTHENUM\{00001111-0000-1000-8000-00805F9B34FB}
BTHENUM\{00001117-0000-1000-8000-00805F9B34FB}
BTHENUM\{00001118-0000-1000-8000-00805F9B34FB}
BTHENUM\{0000111E-0000-1000-8000-00805F9B34FB}
BTHENUM\{0000111F-0000-1000-8000-00805F9B34FB}
To get the Inspiron 3421 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 Inspiron 3421 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.
After downloading the new driver, proceed with installation. On Windows, use the built-in Device Manager utility to manage your system's devices and drivers. To access it:
Right-click the Start button
Select "Device Manager" from the menu
Locate the device needing the update
Right-click the device and choose "Update driver"
Follow the on-screen prompts to install
Once complete, restart your computer to ensure the new driver is fully implemented and functioning properly.
This process helps maintain your system's performance and compatibility with various hardware components.
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.
The following files are found inside the driver download file.
| Name | Size | Date |
|---|---|---|
| Config.ini | 112 bytes | 3 Sep 2012 |
| Desc.xml | 362 bytes | 11 Dec 2012 |
| Install_CD/0x0401.ini | 19.0 KB | 20 May 2009 |
| Install_CD/0x0402.ini | 23.5 KB | 21 Apr 2009 |
| Install_CD/0x0404.ini | 10.3 KB | 21 May 2009 |
| Install_CD/0x0405.ini | 22.2 KB | 20 May 2009 |
| Install_CD/0x0406.ini | 22.8 KB | 20 May 2009 |
| Install_CD/0x0407.ini | 24.7 KB | 20 May 2009 |
| Install_CD/0x0408.ini | 26.1 KB | 18 Mar 2009 |
| Install_CD/0x0409.ini | 21.5 KB | 21 May 2009 |
| Install_CD/0x040a.ini | 24.0 KB | 20 May 2009 |
| Install_CD/0x040b.ini | 21.6 KB | 18 Mar 2009 |
| Install_CD/0x040c.ini | 25.0 KB | 20 May 2009 |
| Install_CD/0x040d.ini | 18.1 KB | 16 Mar 2009 |
| Install_CD/0x040e.ini | 22.3 KB | 18 Mar 2009 |
| Install_CD/0x0410.ini | 23.8 KB | 20 May 2009 |
| Install_CD/0x0411.ini | 14.4 KB | 8 Jun 2009 |
| Install_CD/0x0412.ini | 13.5 KB | 16 Mar 2009 |
| Install_CD/0x0413.ini | 23.8 KB | 20 May 2009 |
| Install_CD/0x0414.ini | 22.8 KB | 20 May 2009 |
| Install_CD/0x0415.ini | 23.1 KB | 20 May 2009 |
| Install_CD/0x0416.ini | 23.0 KB | 20 May 2009 |
| Install_CD/0x0418.ini | 23.5 KB | 20 May 2009 |
| Install_CD/0x0419.ini | 22.3 KB | 20 May 2009 |
| Install_CD/0x041a.ini | 22.4 KB | 20 May 2009 |
| Install_CD/0x041b.ini | 22.4 KB | 20 May 2009 |
| Install_CD/0x041d.ini | 22.2 KB | 20 May 2009 |
| Install_CD/0x041e.ini | 21.6 KB | 18 Mar 2009 |
| Install_CD/0x041f.ini | 22.0 KB | 20 May 2009 |
| Install_CD/0x0424.ini | 22.7 KB | 20 May 2009 |
| Install_CD/0x0804.ini | 10.3 KB | 21 May 2009 |
| Install_CD/0x0816.ini | 23.6 KB | 20 May 2009 |
| Install_CD/0x0c04.ini | 10.3 KB | 21 Jun 2012 |
| Install_CD/0x0c1a.ini | 22.7 KB | 18 Mar 2009 |
| Install_CD/ISSetup.dll | 580.7 KB | 6 Nov 2012 |
| Install_CD/data1.cab | 130.9 MB | 6 Nov 2012 |
| Install_CD/data2.cab | 27.9 MB | 6 Nov 2012 |
| Install_CD/default.ath | 143 bytes | 2 May 2012 |
| Install_CD/layout.bin | 1.0 KB | 6 Nov 2012 |
| Install_CD/setup.exe | 806.5 KB | 6 Nov 2012 |
| Install_CD/setup.ini | 1.5 KB | 6 Nov 2012 |
| Install_CD/setupconfig.ini | 1.6 KB | 17 Oct 2012 |
| Setup_MUP.exe | 194.2 KB | 3 Sep 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/BthAthFax.inf | 13.8 KB | 16 Oct 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/Bthci.dll | 21.0 KB | 16 Oct 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/DIFxAPI.dll | 525.8 KB | 16 Oct 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/WdfCoInstaller01009.dll | 1.7 MB | 16 Oct 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/athdfu.cat | 7.6 KB | 16 Oct 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/athdfu.inf | 1.9 KB | 16 Oct 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/athdfu.sys | 52.4 KB | 16 Oct 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/atheros_bth.cat | 7.9 KB | 16 Oct 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/atheros_bth.inf | 5.1 KB | 16 Oct 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/athrextx.cat | 46.0 KB | 16 Oct 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/athrx.sys | 2.2 MB | 16 Oct 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/btath_a2dp.cat | 8.0 KB | 16 Oct 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/btath_a2dp.inf | 7.0 KB | 16 Oct 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/btath_a2dp.sys | 341.1 KB | 16 Oct 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/btath_avdt.sys | 111.2 KB | 16 Oct 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/btath_bus.cat | 7.5 KB | 16 Oct 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/btath_bus.inf | 2.0 KB | 16 Oct 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/btath_bus.sys | 30.8 KB | 16 Oct 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/btath_flt.cat | 19.0 KB | 16 Oct 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/btath_flt.inf | 13.8 KB | 16 Oct 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/btath_flt.sys | 36.5 KB | 16 Oct 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/btath_hcrp.cat | 8.0 KB | 16 Oct 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/btath_hcrp.inf | 2.8 KB | 16 Oct 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/btath_hcrp.sys | 168.1 KB | 16 Oct 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/btath_hid.cat | 7.5 KB | 16 Oct 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/btath_hid.inf | 2.3 KB | 16 Oct 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/btath_hid.sys | 358.3 KB | 16 Oct 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/btath_lwflt.cat | 7.5 KB | 16 Oct 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/btath_lwflt.inf | 2.4 KB | 16 Oct 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/btath_lwflt.sys | 68.7 KB | 16 Oct 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/btath_rcp.cat | 7.7 KB | 16 Oct 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/btath_rcp.inf | 2.3 KB | 16 Oct 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/btath_rcp.sys | 281.7 KB | 16 Oct 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/btath_sco.cat | 7.5 KB | 16 Oct 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/btath_vdp.cat | 8.0 KB | 16 Oct 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/btath_vdp.inf | 3.3 KB | 16 Oct 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/btath_vdp.sys | 422.1 KB | 16 Oct 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/btatherosInstall.exe | 69.2 KB | 16 Oct 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/btfaxmdm.cat | 7.5 KB | 16 Oct 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/btfilter.sys | 551.0 KB | 16 Oct 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/bthathfax.sys | 75.9 KB | 16 Oct 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/leath_hid.cat | 7.7 KB | 16 Oct 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/leath_hid.inf | 3.0 KB | 16 Oct 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/leath_hid.sys | 36.6 KB | 16 Oct 2012 |
| drivers/production/Windows7-x64/Bluetooth-Driver/netathrx.inf | 320.4 KB | 16 Oct 2012 |
| drivers/production/Windows7-x64/WLAN-Driver/athrextx.cat | 8.5 KB | 6 Nov 2012 |
| drivers/production/Windows7-x64/WLAN-Driver/athrx.sys | 2.8 MB | 23 Oct 2012 |
| drivers/production/Windows7-x64/WLAN-Driver/netathrx.inf | 18.4 KB | 6 Nov 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/BthAthFax.inf | 13.8 KB | 16 Oct 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/Bthci.dll | 21.0 KB | 16 Oct 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/DIFxAPI.dll | 319.5 KB | 16 Oct 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/WdfCoInstaller01009.dll | 1.5 MB | 16 Oct 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/athdfu.cat | 7.6 KB | 16 Oct 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/athdfu.inf | 1.9 KB | 16 Oct 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/athdfu.sys | 44.2 KB | 16 Oct 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/atheros_bth.cat | 7.9 KB | 16 Oct 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/atheros_bth.inf | 5.1 KB | 16 Oct 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/athr.sys | 1.7 MB | 16 Oct 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/athrext.cat | 46.0 KB | 16 Oct 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/btath_a2dp.cat | 8.0 KB | 16 Oct 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/btath_a2dp.inf | 7.0 KB | 16 Oct 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/btath_a2dp.sys | 299.6 KB | 16 Oct 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/btath_avdt.sys | 98.4 KB | 16 Oct 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/btath_bus.cat | 7.5 KB | 16 Oct 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/btath_bus.inf | 2.0 KB | 16 Oct 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/btath_bus.sys | 25.7 KB | 16 Oct 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/btath_flt.cat | 19.0 KB | 16 Oct 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/btath_flt.inf | 13.8 KB | 16 Oct 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/btath_flt.sys | 36.0 KB | 16 Oct 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/btath_hcrp.cat | 8.0 KB | 16 Oct 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/btath_hcrp.inf | 2.8 KB | 16 Oct 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/btath_hcrp.sys | 148.1 KB | 16 Oct 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/btath_hid.cat | 7.5 KB | 16 Oct 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/btath_hid.inf | 2.3 KB | 16 Oct 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/btath_hid.sys | 316.2 KB | 16 Oct 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/btath_lwflt.cat | 7.5 KB | 16 Oct 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/btath_lwflt.inf | 2.4 KB | 16 Oct 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/btath_lwflt.sys | 60.5 KB | 16 Oct 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/btath_rcp.cat | 7.7 KB | 16 Oct 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/btath_rcp.inf | 2.2 KB | 16 Oct 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/btath_rcp.sys | 264.7 KB | 16 Oct 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/btath_sco.cat | 7.5 KB | 16 Oct 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/btath_vdp.cat | 8.0 KB | 16 Oct 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/btath_vdp.inf | 3.3 KB | 16 Oct 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/btath_vdp.sys | 412.9 KB | 16 Oct 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/btatherosInstall.exe | 67.2 KB | 16 Oct 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/btfaxmdm.cat | 7.5 KB | 16 Oct 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/btfilter.sys | 469.6 KB | 16 Oct 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/bthathfax.sys | 59.5 KB | 16 Oct 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/leath_hid.cat | 7.7 KB | 16 Oct 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/leath_hid.inf | 2.9 KB | 16 Oct 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/leath_hid.sys | 32.4 KB | 16 Oct 2012 |
| drivers/production/Windows7-x86/Bluetooth-Driver/netathr.inf | 318.9 KB | 16 Oct 2012 |
| drivers/production/Windows7-x86/WLAN-Driver/athr.sys | 2.2 MB | 23 Oct 2012 |
| drivers/production/Windows7-x86/WLAN-Driver/athrext.cat | 8.5 KB | 6 Nov 2012 |
| drivers/production/Windows7-x86/WLAN-Driver/netathr.inf | 18.3 KB | 6 Nov 2012 |
| install.bat | 37 bytes | 11 Dec 2012 |
| mup.xml | 6.2 KB | 10 Jan 2013 |
| package.xml | 21.2 KB | 16 Jan 2013 |