How to Setup Asus RT-AC66u Router in 2021?

Setup Asus RT-AC66u Router: Are you having an issue while trying to setup Asus RT-AC66u Router? then all you need to do is follow the detailed instructions we have provided in this article. 

setup Asus RT-AC66u Router

Asus rt-ac66u is a gigabit dual-band router having 3 Omni antenna with 1750mbps wireless speed. This router has a multifunction USB port which is useful for printer sharing and also data storage sharing.

Asus rt-ac66u router is a perfect choice for home internet, office, live streaming and gaming. This router is compatible with all the major internet providers and comes with all the latest security features.

Asus RT-AC66u Router Setup

Asus RT-AC66u WiFi router default IP is –

Use 192.168.l.l0 in Laptop/PC lan.

Default username or ID: admin

Password: admin 

Below is a step by step guide on how to Setup Asus RT-AC66u Router:

Step 1: Firstly, make sure to attach the antennas in the correct position to receive the signal in every corner of your house.

Step 2: Next, connect your router to the power source.

Step 3: If at all, you receive internet through the cable modem, fibre optic box, or DSL modem. Make sure to connect one end of your ethernet cable in the internet port of your modem and the other end to the ethernet port of your router.

Step 4: Next, select the Wi-Fi icon at the bottom right side on your Windows pc.

Step 5: To setup Asus rt-ac66u router, you need to link it to ASUS_5G or ASUS. You can choose to connect to either of these devices.

Step 6: In the next step, open the access page of the internet router. Here, enter in the location bar. It will further open up the setup page of your router.  

Asus RT-AC66u Router settings page

Step 7: Next, create the admin username and password. It will allow you to make changes in the settings of your router.

asus router username and pass setup

Remember, you will have to enter the router login details i.e. name and passphrase every time you wish to make changes in the settings. 

NOTE: Any person that has access to your wireless network; can make changes in the administration settings of your router. So, Make sure to keep a distinct username (login ID) and password. 

Step 8: After entering your login details, the router may take a few minutes for detecting the type of internet connection.

Step 9: After that, you get to decide the name of the network. The network name is also known as SSID name is the identity of your network. So, it is important to choose a network name. our suggestion would be, get creative with it!!  

Step 10: Every time you set a new username and password, you will get disconnected from your network immediately. When this happens, all you need to do is enter your newly created network name and password to reconnect.

Step 11: Next, return to the webpage of your router in your internet browser. Enter your login ID and password to log into your router.

Step 12:  Further, navigate to the administration tab after successfully logging in. Click on the tab of the firmware upgrade and look for the latest version of firmware for upgrading.

Step 13: In the next pop up window you are required to click OK for firmware up-gradation. 

Step 14: The firmware will start downloading once you select ok. 

Step 15: Once you are done with the installation process, reboot your router. The rebooting process may take a few minutes to complete.

Step 16: Next, select your router and go back to the login page. Enter your login ID and password. 

Step 17: In the next step, click on the firmware upgrade tab to confirm that your firmware up-gradation process is complete by clicking on the check. 

Step 18:  And that’s it!! the process to set up the Asus rt-ac66u router has finally come to an end.

Connecting the Asus RT-AC66U to PC/Laptop’s LAN:

To setup Asus rt-ac66u router, you need to connect it physically with your device’s Lan.

Follow the below-given steps to connect the Asus RT-AC66u router to your PC.

  • First, turn on your router with the DC power adaptor that comes with the box. 
  • Next, use cat6 LAN cable to connect your router LAN (yellow) port to PC/Desktop LAN port.
  • Finally, connect the internet cable coming from ISP to WAN (blue Port).

Login Asus RT-Ac66u Dual Band Router

For this, you need to open your web browsers such as Google Chrome, Internet Explorer or Mozilla.

Next, Access HTTP:// and hit enter.

You will be redirected to the Asus rt-n66u router login page.

Use the default username and password to log into your router.

After Logging into the Asus dual-band router. Follow the given steps to set up the router the first time.

To make a proper configuration, make sure to follow the step by step Asus rt-ac66u configuration manual to avoid any wrong configuration settings that will further reduce the router performance.

1: WAN Configuration

2: LAN IP Settings

3: Wireless Configuration

4: Guest Network Setup

Asus RT-ac66u WAN settings in PPPoE Mode

Choose these settings only when your internet runs on dialup username and password.

Select the WAN connection type: PPPoE.

Account Settings:

Username and password: use the username provided by your internet service provider or ask for details.

If your internet requires a service name, then find service name settings in the bottom.

Next, click apply settings to save changes.

Asus RT-AC66u Router LAN IP Setup

Most of the time, any router comes with the same default IP address. So in case if you are using more than one wifi router in-home and workplace, make sure to change the LAN IP address to further avoid any network conflicts. 

For setting up LAN Ip, go to LAN


Configure the LAN settings of the Asus rt-AC66U.

IP Address: (Make sure to change the IP Address in this box . you can use different IP of the same series. for Exp

Subnet Mask: ( use subnet as per IP series)


We hope this article is of help to you. In the above article, we have given out a simple step by step guide on how to setup Asus RT-AC66u router. If you have any doubts regarding this article, let us know in the comment box below. 

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