13.09.2019 · Maybe, after installing DD-WRT on your Linksys WRT1900ACS router you realise that it is not for you or maybe you want to try a different router firmware such as OpenWrt or Tomato, so you want to restore the original Linksys firmware on your router. Here’s how you can do it.
An alternative method to restore DD-WRT to default settings without using the reset button is via telnet or SSH. This is useful if locked out of the web interface or the reset button is disabled, broken, or 30/30/30 doesn't work. This should not be done on some models, so refer to the device wiki and/or forum device threads.
Resetting to Factory Defaults. NOTE: This will not restore firmware to a previous state, it only clears the settings. Here are the ways that you can Reset to Factory Defaults. Via the DD-WRT Web GUI. Under Administration -> Factory Defaults Via the reset button on the router
See Erasing NVRAM in the Hard Reset wiki for command line details. To "clear, wipe, reset, or erase the nvram" commonly indicates "to reset back to the firmware's defaults", although the two terms do not mean exactly the same thing. "Factory Defaults" in DD-WRT really means "firmware defaults" because it reverts to DD-WRT's defaults.
On this page I will show you how to reset the Buffalo DD-WRT-v24SP2-MULTI router back to it's original factory defaults. It is important to know the difference ...
To fully reset a router flashed with DD-WRT, perform a 30-30-30 reset: The following procedure will clear out the NVRAM and set dd-wrt back to default values: With the unit powered on, press and hold the reset button on back of unit for 30 seconds. Without releasing the reset button, unplug the unit and hold reset for another 30 seconds.