Install DD-WRT to NETGEAR R6700v3

I’ve had this router for a while. Got it as a replacement when my old Linksys died out (it was a refurbished unit so that may have been the issue). Because I was in a rush I didn’t research properly for a well compatible DD-WRT model. Due to being overseas I wanted an option to have a VPN on the router level and also disable all the NETGEAR backdoors in the proprietary flash.

Upon some research I found the R6700v3 has similar hardware to the R6400v2. Specifically:
Broadcom BCM4708A0 1GHz, 2 cores
Flash ROM 128MB
RAM 256MB
Wireless BCM4360 5 GHz & BCM4331 2.4 GHz

Any recent build should be supported. I chose to start with the known good-to-flash 41328. After I was successful I installed the most current daily build without issues.

My router was using the 1.4 firmware from NETGEAR (current as of February 2020). It did allow me to install a lower version with just a warning, so I didn’t need to tinker with the .chk file version.

The steps are pretty straight forward, but here is what I did:

  • Backup current stock firmware settings
  • Reset router to factory defaults
  • Run through initial setup and flash with the 41328 .chk file
  • Setup the DD-WRT router
  • Restart and update to the desired build

The R6700v3 has only one device ID making it easier to flash than the R6400v2 as you don’t have to worry using the wrong files or settings.

More information can be found on the information page on DD-WRT at: https://wiki.dd-wrt.com/wiki/index.php/Netgear_R6700v3

I am happy with the DD-WRT interface and have used it in the distant past. AC speeds work as intended and I have a greater control of the router hardware.