Download for TL-ER604W V1

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>How to find the hardware version on a TP-Link device

IMPORTANT: Model and hardware version availability varies by region. Please refer to your TP-Link regional website to determine product availability.
Product Overview

IPSec VPN Client Software

IPSec VPN Client

Published Date: 2017-08-11 Language: English File Size: 5.81 MB
Operating System: Win2000/XP/2003/Vista/7



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 upgrade firmware from the local TP-Link official website of the purchase location for your TP-Link device, otherwise it will be against the warranty. Please click here to change site if necessary.
  • 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)
    How to find the hardware version on a TP-Link device
  • Do NOT turn off the power during the upgrade process, as it may cause permanent damage to the product.
  • To avoid wireless disconnect issue during firmware upgrade process, it's recommended to upload firmware with wired connection unless there is no LAN/Ethernet port on your TP-Link device.
  • 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: 2016-08-25 Language: English File Size: 5.05 MB


For the TL-ER604W V1


Published Date: 2015-10-21 Language: English File Size: 4.68 MB

Modifications and Bug Fixes:

New firmware for United States to restrict the country code to US


For TL-ER604W V1


Published Date: 2014-10-31 Language: English File Size: 5.11 MB

Modifications and Bug Fixes:

  1. New Features/Enhancement:
    (1)Added IGMP Proxy/Snooping feature for muliticast applications, like IPTV;
    (2)Added IP NAT Table feature;
    (3)Added SNMP feature;
    (4)Added access security feature, inclueding local access control and SSL feature;
    (5)Added optional NetBIOS passthrough feature for L2TP/PPTP VPN;
    (6)Added a new feature to support Daylight Saving Time;
    (7)Added a new feature to defend against CSRF attacks;
    (8)Improved IPSec VPN feature;
    (9) Imporved NAT throughput for Russian L2TP/PPTP;
    (10)Improved DDNS feature, including auto/manual update for No-IP and DynDNS;
    (11)Improved system stability;
    (12)Optimized Virtual Server feature;
    (13) Optimized IP MAC Binding feature;
    (14)Optimized Policy routing feature;
    (15)Optimized IPSec ALG/Passthrough feature;
    (16)Expanded the scope of IP addresses can be added in the IP Pool used for L2TP/PPTP VPN.
  2. Bug Fixed:
    (1)Fixed some bugs on encrypted L2TP VPN;
    (2)Fixed encapsulation error in DNS reply packets from the router to the L2TP/PPTP clients.


1.For TL-ER604W V1;
2.Due to considerable modifications, config files for the previous firmwares may not work very well in the new firmware and vice versa. It is strongly recommended to reset and reconfig the router after upgrading to this firmware.

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 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.


Firmware Version
Working Mode


1. This Emulator is a virtual web GUI where you can program your TP-Link product firmware. For details about an individual product’s features and specifications please use the search facility and go to the product page.

2. Please check the firmware version corresponds to the version shown on the Emulator interface. Each firmware version has its own GUI and functionality.

3. Please note that not all firmware versions are represented on the Emulator.