1. [1077] What should I do if internet speed is slow when the device is connected to the router’s wireless network
  2. [0852] How to set up IPv6 service on the TP-LINK wireless router
  3. [0785] Why port forwarding feature is not working on my router?
  4. [0782] Why my Archer C20i cannot get a high wireless speed as advertised?
  5. [0744] How to setup and share a printer on your local network with Print Server feature on the TP-LINK device? (MAC OS)
  6. [0722] What can I do if the wireless network is unstable via my wireless router/modem router?
  7. [0690] What are the most frequent asked questions about the TP-LINK routers' speed?
  8. [0688] How to Upgrade the firmware version of TP-LINK Wireless Router?
  9. [0686] How to Configure Guest Network on Archer C2 and Archer C20i routers?
  10. [0682] How to setup and use the Media Server feature on the Archer C2 and Archer C20i routers to share media files?
  11. [0681] How to setup and use the FTP Server feature on the the Archer C2 and Archer C20i routers?
  12. [0680] How to set up and manage access to your shared storage with the Archer C2 and Archer C20i routers?
  13. [0651] How to Set up Parent Control in Archer C2 and Archer C20i routers?
  14. [0650] How to Set Up Access Control on Archer C2 and Archer C20i routers?
  15. [0618] How to install TP-LINK wireless router to work with a DSL Modem (PPPoE)?
  16. [0609] How do I install TP-LINK wireless router to work with a Modem (Static IP)?
  17. [0608] How do I install TP-LINK router to work with a Cable Modem?
  18. [0607] How do I install a TP-LINK router to work with a DSL modem (Dynamic IP)?
  19. [0606] Application Requirement/Choose WAN Connection Type on my TP-LINK router
  20. [0596] How to do troubleshooting from the system log when PPPoE connection fails?
  21. [0560] How to configure Static Routing on wireless routers?
  22. [0557] How to use bandwidth control on TP-LINK wireless router?
  23. [0540] What’s the Function of 'Disable NAT'?
  24. [0519] Why Internet is not available on the guest network when wireless router works as an AP or wireless switch?
  25. [0469] How to improve the signal strength of my 5GHz wireless connection?
  26. [0468] How to improve my wireless speed or range?
  27. [0465] Performance Comparison Chart of TP-LINK Wireless Router
  28. [0440] How to Configure WDS Bridging on TP-LINK Dual Band Routers (green UI)?
  29. [0430] Why cannot I access the Internet after successfully connected to the TP-LINK router's wireless network(MAC OS)?
  30. [0429] Why cannot I connect to the secured wireless network?
  31. [0428] Why cannot I access the Internet after successfully connected to the TP-LINK router’s wireless network(Windows OS)?
  32. [0426] What can I do if I forget the login password of TP-LINK Wireless Router?
  33. [0420] How to Use the Local Storage Sharing Feature
  34. [0419] How to Setup DDNS (No-IP) on TP-LINK Wireless Router?
  35. [0417] How to Configure TP-LINK N router as a wireless Access Point?
  36. [0415] How to Use Print Server Function on TP-LINK Router?
  37. [0399] How to find or change the wireless password on the TP-LINK products
  38. [0361] Why my TP-LINK Router gets a WAN IP from the modem but no internet access?
  39. [0358] Why cannot log into the Management Page with NOD 32 ESET?
  40. [0355] How to find the wireless key on the 11N router?
  41. [0325] How to open the network shared folder with TP-LINK wireless routers on Windows computer?
  42. [0324] How to configure Wireless MAC address filter on wireless router?
  43. [0297] How to Setup DDNS(DynDNS) on Wireless Router?
  44. [0279] How to access my USB NAS device on the TP-LINK wireless routers from my Mac computer?
  45. [0263] How to join the second TP-LINK 11N router to TD-W8960N by WDS (Wireless Bridge)
  46. [0257] How do I secure/protect my wireless network by using WEP encryption on TP-LINK wireless 11N Router?
  47. [0256] How do I secure/protect my wireless network by using WPA-PSK/WPA2-PSK on TP-LINK Wireless 11N Router?
  48. [0254] How to change the Network Sharing Settings on TP-LINK wireless routers?
  49. [0253] How to apply the Network Sharing USB Settings Function on TP-LINK routers?
  50. [0224] How to confirm whether the router is connected to internet through Diagnostic function?
  51. [0182] How to configure Address Reservation on TP-LINK wireless router
  52. [0170] How to bind IP Address and MAC Address on TP-LINK Router?
  53. [0138] Why my TP-LINK router can not get WAN parameters from my modem?
  54. [0087] How do I log into the web-based Utility (Management Page) of TP-LINK wireless router?
  55. [0073] How do I change the administrative username or password of TP-LINK Wireless Routers?
  56. [0072] How do I open ports on my TP-LINK wireless Router?
  57. [0071] How do I open ports on my TP-LINK Wireless Router for Xbox Live?
  58. [0070] How to view System Log of TP-LINK wireless Router?
  59. [0069] How do I reduce the MTU size on my TP-LINK Router?
  60. [0068] How do I configure MAC Address Clone on my TP-LINK Wireless Router?
  61. [0067] How do I change the IP address of a TP-Link Wireless Router (Green UI)?
  62. [0066] How do I configure Remote Management for my TP-LINK Wireless Router?


  • Please note: The products of TP-LINK partly contain software code developed by third parties, including software code subject to the GNU General Public Licence (“GPL“), Version 1/Version 2/Version 3 or GNU Lesser General Public License("LGPL"). You may use the respective software condition to following the GPL licence terms.

    You can review, print and download the respective GPL licence terms here. You receive the GPL source codes of the respective software used in TP-LINK products for direct download and further information, including a list of TP-LINK software that contain GPL software code under GPL Code Center.

    The respective programs are distributed WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the respective GNU General Public License for more details.

  • Please verify the hardware version of your device for the firmware version. Wrong firmware upgrade may damage your device and void the warranty. (Normally V1.x=V1)
  • Do NOT turn off the power during upgrade.
  • Do NOT upgrade the firmware through wireless connection unless the device only has wireless connection;
  • It's recommended that users stop all Internet applications on the computer, or simply disconnect Internet line from the device before upgrade.
  • Use decompression software such as WinZIP or WinRAR to extract the file you download before upgrade.
File Size
6.71 MB
Modifications and Bug Fixes
1 Optimized firmware for new CE certification standard
2 Enhanced the security mechanism.
1 For Archer C20i_V1.
2 Your device’s configuration will be lost after upgrading, it's recommended to backup configuration settings before upgrading.
3 The EU firmware was specialized for CE certification and can’t be downgraded to other version, please click here for choosing your region and selecting the most suitable firmware version to upgrade. 
File Size
6.55 MB
Modifications and Bug Fixes

New Features/Enhancement:

  1. Improved the PPPOE function.
  2. Optimized the IPV6 function.
  3. Optimized the display on Tether APP.
  4. Optimized the performance of web server and fixed some web display bugs on IE8.
  5. Added an option which allows ping packet from WAN port in "Security".

Bug Fixed:

  1. Fixed the bug that media player will detect MP4 file as music file when Media server is enabled.
  2. Fixed the bug that can't use DMZ_Loopback function in PPPOE mode.

For Archer C20i(UN) V1

  1. Old firmware’s configuration file can be imported into this new firmware
  2. Your device’s configuration won't be lost after upgrading, which means you need not to configure your device again
File Size
6.46 MB
Modifications and Bug Fixes

New Features/Enhancement:
1.Improved the friendliness and stability with Tether;
2.Optimized the management page on Chrome browser;
3.Improved Advance Routing function;
4.Improved and optimized IPv6 function;
Bug Fixed:
1.Fixed the security bug caused by overflowing of kcodes buffer;
2.Fixed the bug that can't display web interface via IE9 in win7 OS;
3.Fixed the bug that ARP List shows inaccurate IP after binding IP&MAC;
4.Fixed the bug that static route will be disabled after rebooting;
5.Fixed the bug that 5G channel will change into band 4 channel in "Romania" region;


For Archer C20i(UN) V1

Some official firmware of TP-LINK products can be replaced by the third party firmware such as DD-WRT. TP-LINK does not provide technical support and does not guarantee the performance and stability of third party firmware. Damage to the product as a result of using third party firmware will void the product's warranty.


File Size
15.57 MB
Operating System
For Archer c20i
File Size
13.45 MB
Operating System
For Archer C20i(UN) V1


TP-LINK Tether
TP-LINK Tether provides the easiest way to access and manage your network with your iOS or Android devices. Learn more about TP-LINK Tether and Compatible Devices.

Note: To use Tether, please update your router’s firmware to the latest version.

GPL Code


Firmware Version
Working Mode