At launch, the RT-N66U was limited to 32k nvram. However, CFE (bootloader) version 1.0.1.3 added 64k nvram support around April 2013, but was not compatible with DD-WRT firmware at that time. For details, see these forum links to historical nvram and 64K implemention discussions: Fractal comments and "RT-N66 CFE Thread"
Asus RT-AC66U B1 Dual-Band Gigabit Wi-Fi Router Review | PCMag The Asus RT-AC66U B1 is a budget-friendly dual-band router that is easy to install, feature-packed, and delivers solid throughput performance. How to install Tomato on Asus RT-AC66U router - Behind The Jul 04, 2016 Download ASUS RT-AC68U Router Firmware 3.0.0.4.376.3626 - Please press the reset button more than five seconds to reset the router after firmware updated. Fixes: - Fixed the EU/JP/China 5GHz disappear issue which is caused by 3.0.0.4.376_3602 - Increased the firmware partition size in preparation for further new features.
Upgrade all routers with AiMesh-supported firmware Firmware 1.upgrade Plug in the power adapter and press the power button at the back of your router. 2. Check the WAN and 2. 4GHz / 5GHz LED lights to ensure the hardware connection is ready. 3. Connect your PC to the router via a network cable. Step 1 Step 2 Modem AiMesh router AiMesh node
How to install Tomato on Asus RT-AC66U router - Behind The Jul 04, 2016 Download ASUS RT-AC68U Router Firmware 3.0.0.4.376.3626
Home / RT-AC66U / Release Asuswrt-Merlin ============== This is an enhanced version of Asuswrt - the firmware used by all recent Asus routers. The goal of this project is to fix issues and bring some minor functionality adjustments to the original Asus firmware. While some features do get added, this is not the main focus of this project.
ASUS Router firmware update issues! : asuswrt Can't update the router firmware of ASUS RT-AC66U B1 from 3.0.0.4.385_20490 to 4.6. the latest as of now! Can actually update it automatically, but after completing the update it shows the same old firmware version.