The TL-WN821N is a network device manufactured by TP-LINK. 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 "TL-WN821N_V4_140918.zip" is rated (4 out of 5 stars) based on 596 downloads and 4 reviews. It is compatible with PCs running Windows 8, Windows 7, Windows Vista and Windows XP, among other operating systems. The total disk space used for this update is 6.4 MB.
TL-WN821N
Windows 8.1, Windows 8.1 (64 bit), Windows 8, Windows 8 (64 bit), Windows 7, Windows 7 (64 bit), Windows Vista, Windows Vista (64 bit), Windows XP
1.00 (18-Sep-2014)
Wireless USB Adapter Driver File
Sharmila (DG Staff Member) on 19-Oct-2017
To get the TL-WN821N 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 TP-LINK TL-WN821N 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 TP-LINK 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 TP-LINK website. Most major device manufacturers update their drivers regularly.
Installing your newly downloaded driver is a straightforward process. Windows provides a dedicated tool called Device Manager for this purpose. Follow these steps to update your driver:
Access the Quick Access menu by right-clicking the Start button.
From the menu options, choose "Device Manager".
Within Device Manager, identify the device requiring the driver update.
Open the context menu for the device by right-clicking its name.
Select "Update driver" and proceed through the guided installation.
To complete the process, reboot your computer. This ensures the new driver is fully integrated into your system.
Regular driver updates contribute to optimal system performance and hardware compatibility.
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 |
---|---|---|
TL-WN821N_V4_140918/Release Note.txt | 81 bytes | 23 Dec 2014 |
TL-WN821N_V4_140918/Windows 7 32bit/net8192cu.cat | 7.5 KB | 13 Mar 2013 |
TL-WN821N_V4_140918/Windows 7 32bit/net8192cu.inf | 16.2 KB | 13 Mar 2013 |
TL-WN821N_V4_140918/Windows 7 32bit/rtl8192cu.sys | 801.9 KB | 13 Mar 2013 |
TL-WN821N_V4_140918/Windows 7 64bit/net8192cu.cat | 7.5 KB | 13 Mar 2013 |
TL-WN821N_V4_140918/Windows 7 64bit/net8192cu.inf | 16.2 KB | 13 Mar 2013 |
TL-WN821N_V4_140918/Windows 7 64bit/rtl8192cu.sys | 926.8 KB | 13 Mar 2013 |
TL-WN821N_V4_140918/Windows 8 32bit/netrtwlanu.cat | 9.9 KB | 21 Jun 2013 |
TL-WN821N_V4_140918/Windows 8 32bit/netrtwlanu.inf | 38.5 KB | 19 Mar 2013 |
TL-WN821N_V4_140918/Windows 8 32bit/rtwlanu.sys | 1.4 MB | 6 Dec 2012 |
TL-WN821N_V4_140918/Windows 8 64bit/netrtwlanu.cat | 9.9 KB | 21 Jun 2013 |
TL-WN821N_V4_140918/Windows 8 64bit/netrtwlanu.inf | 36.4 KB | 19 Mar 2013 |
TL-WN821N_V4_140918/Windows 8 64bit/rtwlanu.sys | 1.6 MB | 6 Dec 2012 |
TL-WN821N_V4_140918/Windows 8.1 32bit/netrtwlanu.cat | 10.0 KB | 19 Aug 2014 |
TL-WN821N_V4_140918/Windows 8.1 32bit/netrtwlanu.inf | 121.5 KB | 16 Jul 2014 |
TL-WN821N_V4_140918/Windows 8.1 32bit/rtlCoInst.dat | 8.3 KB | 14 Jan 2014 |
TL-WN821N_V4_140918/Windows 8.1 32bit/rtlCoInst.dll | 18.1 KB | 14 Jan 2014 |
TL-WN821N_V4_140918/Windows 8.1 32bit/rtwlanu.sys | 2.6 MB | 26 Mar 2014 |
TL-WN821N_V4_140918/Windows 8.1 64bit/netrtwlanu.cat | 10.0 KB | 19 Aug 2014 |
TL-WN821N_V4_140918/Windows 8.1 64bit/netrtwlanu.inf | 118.5 KB | 11 Apr 2014 |
TL-WN821N_V4_140918/Windows 8.1 64bit/rtlCoInst.dat | 8.3 KB | 14 Jan 2014 |
TL-WN821N_V4_140918/Windows 8.1 64bit/rtlCoInst.dll | 21.7 KB | 14 Jan 2014 |
TL-WN821N_V4_140918/Windows 8.1 64bit/rtwlanu.sys | 3.0 MB | 16 Jan 2014 |
TL-WN821N_V4_140918/Windows Vista 32bit/net8192cu.cat | 7.5 KB | 13 Mar 2013 |
TL-WN821N_V4_140918/Windows Vista 32bit/net8192cu.inf | 14.8 KB | 13 Mar 2013 |
TL-WN821N_V4_140918/Windows Vista 32bit/rtl8192cu.sys | 764.5 KB | 13 Mar 2013 |
TL-WN821N_V4_140918/Windows Vista 64bit/net8192cu.cat | 7.5 KB | 13 Mar 2013 |
TL-WN821N_V4_140918/Windows Vista 64bit/net8192cu.inf | 14.8 KB | 13 Mar 2013 |
TL-WN821N_V4_140918/Windows Vista 64bit/rtl8192cu.sys | 882.8 KB | 13 Mar 2013 |
TL-WN821N_V4_140918/Windows XP 32bit/net8192cu.cat | 7.5 KB | 13 Mar 2013 |
TL-WN821N_V4_140918/Windows XP 32bit/net8192cu.inf | 14.5 KB | 13 Mar 2013 |
TL-WN821N_V4_140918/Windows XP 32bit/rtl8192cu.sys | 1.1 MB | 13 Mar 2013 |
TL-WN821N_V4_140918/Windows XP 64bit/net8192cu.cat | 7.5 KB | 13 Mar 2013 |
TL-WN821N_V4_140918/Windows XP 64bit/net8192cu.inf | 14.4 KB | 13 Mar 2013 |
TL-WN821N_V4_140918/Windows XP 64bit/rtl8192cu.sys | 1.1 MB | 13 Mar 2013 |