A firmware update can resolve issues that the previous firmware version may have and improve its current performance.

To Upgrade

IMPORTANT: To prevent upgrade failures, please read the following before proceeding with the upgrade process

  • 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)
    It is NOT suggested to upgrade firmware which is not for your region. Please click here to choose your own region and download the most suitable firmware version. ( eg. the firmware of EU and US are different hardware versions)
  • Do NOT turn off the power during the upgrade process, as it may cause permanent damage to the product.
  • Do NOT upgrade the firmware through wireless connection unless the TP-Link 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 the upgrade.
  • Use decompression software such as WinZIP or WinRAR to extract the file you download before the upgrade.


Published Date: 2018-12-12 Language: English File Size: 5.83 MB

Modifications and Bug Fixes:
1. Fixed the problem that the HTTPS websites can be visited before passing the Facebook Portal authentication.
2. Added the Hidden SSID function.
3. Added the support for HTTPS management page.
4. Fixed the problem that the CAP might not get re-connected to the AC controller after disconnection.
5. Fixed the problem that the web page may crash during wireless scanning.
6. Fixed the problem that the HTTPS management page is not supported in Chrome.
7. Fixed the problem that what's App, Facebook can communicate properly on client devices before passing the portal authentication.


Published Date: 2018-02-09 Language: English File Size: 5.76 MB

Modifications and Bug Fixes:
1.Now the "Client IP Address" can be shown in the "Client Status".
2.Update the TDDP version.
3.Improve the stability performance when too many wireless clients are connected at the same time.
4.Fixed the WPA2 vulnerability.
5.Fixed the bug that the LED may blink incorrectly when updating the firmware in FIT mode.
6.Fixed the bug that the device may drop offline when processing the abnormal client hello packets.

For CAP300(EU)1.0


Published Date: 2016-11-08 Language: English File Size: 5.74 MB

Modifications and Bug Fixes:

Enhance the wireless stability.


1.For CAP300(UN)_V1.0
2.Your device's configuration will not be lost after upgrading.

To Use Third Party Firmware In TP-Link Products

Some official firmware of TP-Link products can be replaced by the third party firmware such as DD-WRT. TP-Link is not obligated to provide any maintenance or support for it, 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.

Open Source Code For Programmers (GPL)

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 termshere. 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.

GPL Code

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