The Asus AC66U (no B1) was originally a draft AC router using the same CPU chip and plastic housing as the Asus RT-N66U just with an additional AC radio. Asus then upgraded the router by using the exact same hardware as in the Asus AC68U 1900 AC router and placed it in the new AC66U B1 router while still using the old plastic housing.
To access the settings of RT-N66U, reconnect to the wireless network and use the updated IP address and port number. The message is misleading, what I did was firmware upgrade, nothing changes on IP address or port number, and it did not allow me to log into the admin control panel. ASUS RT-N66U - WikiDevi.Wi-Cat.RU In the Asus Recover utility Access the router’s built in recovery mode by issuing 192.168.1.1 in browser field. Flash the initial DD-WRT build (e.g.) Asus-RT-N66U_18946_mini.trx build and upload. When completed wait until the router re-boots on its own. How to Setup ASUS RT-AC68U as an Access Point and Repeater Jul 05, 2019 ASUS RT-N66U — Krebs on Security
The danger in this case is with Asus router models including RT-AC66R, RT-AC66U, RT-N66R, RT-N66U, RT-AC56U, RT-N56R, RT-N56U, RT-N14U, RT-N16, and RT-N16R. Enabling any of the (by-default
Dec 08, 2017 How to Fix 99% of Asus WiFi Router Problems
Sep 24, 2012
In the Asus Recover utility Access the router’s built in recovery mode by issuing 192.168.1.1 in browser field. Flash the initial DD-WRT build (e.g.) Asus-RT-N66U_18946_mini.trx build and upload. When completed wait until the router re-boots on its own. Asus - RT-N66U. Ip Address: 192.168.1.1. Login: admin. Password: admin. Login to the router with the default IP addresse 192.168.1.1 and then use the username ASUS RT-N66U Dual Band Wireless N900 Ultra Thin Gigabit Router 2.4/5GHZ 4.6 out of 5 stars 32 ASUS Asus dualband ac1750 b1 WiFi 4port gigabit Router rt-ac66ucertified , 3.4 Ounce (Renewed)