Use the asus-rt-ac66u/ folder for this router (hardware revision "A1"). For download locations and other info see Where do I download firmware in the FAQ Research "New Build" and model/rev forum threads: do not blindly install a latest build without checking Read the Peacock announcement for older recommended builds and general information.

RT-AC66U Dual Band 3x3 802.11AC Gigabit Router The ultra-thin and stylish RT-AC66U features a 2.4GHz and 5GHz dual bands for an unmatched concurrent wireless HD streaming; SMB server, UPnP AV server, and FTP server for 24/7 file sharing; a capability to handle 300,000 sessions; and the ASUS Green Network Technology, which provides up to 70% power- Asus RT-AC66U - DD-WRT firmware age Jan 02, 2017 ASUS RT-AC66U Dual-Band Wireless-AC1750 Gigabit Router Upgrade to the latest dual-band wireless AC for a new level of network experience. The ASUS RT-AC66U router utilizes the Broadcom 802.11ac controller, operates on 5 GHz and 2.4 GHz bands simultaneously, and provides up to 1750 Mbps combined data rate for smooth online gaming, 4k video streaming and other bandwidth-intensive tasks. How to Fix 99% of Asus WiFi Router Problems If you have an Asus WiFi router problem like; NAT / port forwarding not working, connection problems, upgraded to a firmware which caused your router to not work properly here is what you can do to solve the problem.Upgrade to AsusWRT Merlin firmware if you can find your router in the list of available firmware files. This firmware will probably solve your Asus router problem in 99% of cases.

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Flash TM-AC1900 to ASUS RT-AC68U to use AiMesh | by More Apr 17, 2019 Boosting performance of Asus RT-N66U - Gunnar Peipman

Dec 15, 2016

Asus RT-AC66U vs RT-AC68U vs RT-AC68P vs RT-AC68W Jun 14, 2019 Whats the Best Custom Firmware for Asus RT-N66U RE: Whats the Best Custom Firmware for Asus RT-N66U ??? 04-12-2017, 10:41 PM #3 (04-11-2017, 09:43 PM) Skullmeat Wrote: Both of those are really good, but last I checked tomato had more features. ASUS RT-AC66U QUICK START MANUAL Pdf Download.