asus RT-AC51U (90IG0150-BM3G00) Default Router Login: Username, Password & IP Address

FieldValue
Router ModelASUS RT-AC51U (90IG0150-BM3G00)
BrandASUS
Default IP Address192.168.1.1
Login URLhttp://192.168.1.1
Default Usernameadmin
Default Passwordadmin
Wireless Standard802.11ac
Frequency BandsDual-band 2.4GHz + 5GHz
Quick Answer: To log in to the ASUS RT-AC51U (90IG0150-BM3G00), open a browser and navigate to 192.168.1.1. Enter the default username "admin" and password "admin". If these credentials do not work, the password may have been changed — use the reset button to restore factory defaults.

Key Facts About ASUS RT-AC51U (90IG0150-BM3G00) Default Login

  1. Default IP Address: 192.168.1.1
  2. Default Username: admin
  3. Default Password: admin
  4. Admin panel URL: http://192.168.1.1
  5. Reset method: Hold reset button for 10 seconds
  6. Supported browsers: Chrome, Firefox, Edge, Safari
The ASUS RT-AC51U (90IG0150-BM3G00) is a versatile dual-band Wi-Fi router designed to provide reliable internet connectivity for home and small office environments. This router utilizes 192.168.1.1 as its default gateway address, allowing users to access its administrative interface for configuration and management. Understanding how to log in to your ASUS RT-AC51U (90IG0150-BM3G00) is crucial for optimizing your network settings, enhancing security, and troubleshooting any connectivity issues. The default login credentials are typically "admin" for both the username and password.

What Are the Technical Specifications of the ASUS RT-AC51U (90IG0150-BM3G00)?

The ASUS RT-AC51U (90IG0150-BM3G00) is engineered to deliver robust wireless performance and a stable network connection. Based on its specifications, it supports the 802.11ac wireless standard, which is a key component for achieving faster data transfer rates and improved efficiency over older standards. This router operates on dual frequency bands, offering both 2.4GHz and 5GHz channels, allowing for greater flexibility in device connection and reduced interference. The maximum theoretical speed for this router is typically around AC750 (up to 750 Mbps combined), making it suitable for everyday internet tasks such as browsing, streaming, and online gaming. It employs WPA2 security protocols to protect your network from unauthorized access.
Feature Specification
Wireless Standard 802.11ac
Frequency Bands Dual-band (2.4GHz and 5GHz)
Maximum Speed AC750 (up to 750 Mbps combined)
Security Protocols WPA2-PSK, WPA-PSK
Antennas External (number may vary, typically 2)
Ethernet Ports Gigabit WAN and LAN ports (specific count may vary)

How Do I Log In to the ASUS RT-AC51U (90IG0150-BM3G00) Router Admin Panel?

To access the ASUS RT-AC51U (90IG0150-BM3G00) admin panel (router configuration interface), follow these steps:
  1. Connect your computer or device to the ASUS RT-AC51U (90IG0150-BM3G00) router. This can be done via an Ethernet cable for a more stable connection, or wirelessly through its Wi-Fi network. It is recommended to use a wired connection, especially for initial setup or significant configuration changes, to prevent accidental disconnections.
  2. Open a web browser of your choice (such as Google Chrome, Mozilla Firefox, Microsoft Edge, or Safari) on the connected device.
  3. In the browser's address bar, type the default IP address for the ASUS RT-AC51U (90IG0150-BM3G00), which is 192.168.1.1, and press Enter. Alternatively, you can try entering the router's domain name, which is often "router.asus.com".
  4. You will be presented with a login screen. Enter the default username and password for your ASUS RT-AC51U (90IG0150-BM3G00). The standard default credentials are: Username: admin, Password: admin.
  5. Click the "Login" or "Sign In" button. If the credentials are correct, you will be granted access to the router's administrative interface, where you can manage all network settings.
If you encounter issues, ensure your device is connected to the ASUS RT-AC51U (90IG0150-BM3G00) network and that you are using the correct IP address.

How Do I Find the ASUS RT-AC51U (90IG0150-BM3G00) Login IP Address?

The default IP address for the ASUS RT-AC51U (90IG0150-BM3G00) is most commonly 192.168.1.1, and this is the address you should use to access its admin panel. However, if the default IP address does not work, or if it has been changed previously, you can find your router's current IP address by checking your computer's network settings. On Windows, open the Command Prompt and type ipconfig. Look for the "Default Gateway" entry under your active network connection; this will be your router's IP address. For macOS or Linux users, open the Terminal and type ip route | grep default or netstat -nr | grep default, respectively. The IP address listed as the default route is your router's IP. Many routers, including ASUS models, also provide a default URL like "router.asus.com" that can be used instead of the IP address.

How Do I Reset the ASUS RT-AC51U (90IG0150-BM3G00) Router Password Without Logging In?

You can reset the ASUS RT-AC51U (90IG0150-BM3G00) to factory defaults without knowing the current password by using the hardware reset button. This process will revert all settings, including the Wi-Fi name (SSID), password, and any custom configurations, back to their original factory state.
  1. Ensure the ASUS RT-AC51U (90IG0150-BM3G00) router is powered on.
  2. Locate the reset button, which is typically a small, recessed button on the back or bottom of the router. You may need a paperclip or a similar pointed object to press it.
  3. Press and hold the reset button for approximately 10 seconds. You might observe the router's LED lights change or blink, indicating that the reset process has begun.
  4. Release the button. The router will reboot, and after a few minutes, it will return to its factory default settings.
After the reset, you can log in using the default IP address (192.168.1.1), username ("admin"), and password ("admin"). Remember that this action will erase all personalized settings, so you will need to reconfigure your network, including your Wi-Fi name and password.

Why Can't I Log In to My ASUS RT-AC51U (90IG0150-BM3G00) Router?

There are several common reasons why you might be unable to log in to your ASUS RT-AC51U (90IG0150-BM3G00) router. The most frequent cause is attempting to use incorrect login credentials; ensure you are using "admin" for both username and password, or if they have been changed, use the credentials you set. Another common issue is trying to access the router with the wrong IP address; verify that you are using 192.168.1.1 or "router.asus.com" and that your device is connected to the ASUS RT-AC51U (90IG0150-BM3G00) network. Browser cache or cookies can sometimes interfere with loading the login page, so clearing your browser's cache or trying an incognito/private browsing window can resolve this. Finally, ensure your device is properly connected to the router, either via Ethernet cable or Wi-Fi, and that the router itself is powered on and functioning correctly.

How Do I Secure My ASUS RT-AC51U (90IG0150-BM3G00) Router After Login?

Securing your ASUS RT-AC51U (90IG0150-BM3G00) router after logging into the admin panel is essential for protecting your network and personal data. The first and most critical step is to change the default administrator password from "admin" to a strong, unique password. According to manufacturer recommendations, a strong password should include a mix of uppercase and lowercase letters, numbers, and symbols, ideally at least 12 characters long. Additionally, enable WPA2 or WPA3 encryption for your Wi-Fi network to secure wireless communications, and set a strong, unique Wi-Fi password. It is also advisable to disable remote management if you do not need to access your router's settings from outside your home network, as this feature can be a security vulnerability. Regularly check for and install firmware updates provided by ASUS, as these often contain critical security patches that protect against the latest threats. Consider setting up a guest network for visitors, which isolates their devices from your main network.

Other Common Default Credentials for ASUS Routers

UsernamePasswordNotes
adminadminMost common default for ASUS RT-AC51U (90IG0150-BM3G00) and many other ASUS models.
adminpasswordOccasionally used on some older or specific ASUS firmware versions.
admin(blank)Less common, but some very old routers might have a blank password field.
useruserRarely used as a default for administration, sometimes for guest access.

What Are Common Router Login IP Addresses?

IP AddressCommon UsageBrands
192.168.1.1Most common gateway for many home routers.TP-Link, Netgear, Asus, Linksys, D-Link
192.168.0.1Another very common alternative IP address.D-Link, Belkin, some TP-Link models.
192.168.1.254Often used by ISP-provided routers or for specific network configurations.Various ISPs, some Netgear models.
10.0.0.1Frequently used by cable modem/router combinations and some manufacturers.Xfinity (Comcast), some Motorola and Apple routers.

IP Address Probability for Router Access

Address / DomainUsage ProbabilityNotes
192.168.1.148%Primary default IP for the ASUS RT-AC51U (90IG0150-BM3G00) and a vast number of other routers.
192.168.0.147%The second most common default IP, often used by competing brands.
192.168.1.2543%Frequently seen in ISP-issued equipment.
192.168.0.2541%Less common, but found in specific network setups.
router.asus.com1%ASUS-specific domain that resolves to the router's IP address.

Frequently Asked Questions About ASUS RT-AC51U (90IG0150-BM3G00) Login

What is the default IP address for the ASUS RT-AC51U (90IG0150-BM3G00)?

The default IP address for the ASUS RT-AC51U (90IG0150-BM3G00) is 192.168.1.1. This address is used to access the router's administrative login page.

How do I log in to my ASUS RT-AC51U (90IG0150-BM3G00) router?

To log in to your ASUS RT-AC51U (90IG0150-BM3G00) router, open a web browser, navigate to http://192.168.1.1, and enter the username 'admin' and password 'admin'.

What is the default password for the ASUS RT-AC51U (90IG0150-BM3G00)?

The default password for the ASUS RT-AC51U (90IG0150-BM3G00) is 'admin'. This is used in conjunction with the default username 'admin'.

How can I find the router password if I've forgotten it for my ASUS RT-AC51U (90IG0150-BM3G00)?

If you have forgotten the password for your ASUS RT-AC51U (90IG0150-BM3G00), you will need to perform a factory reset of the router using the physical reset button, which will revert the password to the default 'admin'.

What should I do if I can't log in to the ASUS RT-AC51U (90IG0150-BM3G00) admin page?

If you cannot log in to the ASUS RT-AC51U (90IG0150-BM3G00) admin page, first ensure you are connected to the correct network and using the accurate IP address (192.168.1.1). Try clearing your browser's cache or performing a router reset if the default credentials fail.

Is it safe to use the default login credentials on my ASUS RT-AC51U (90IG0150-BM3G00)?

It is not recommended to use the default login credentials ('admin'/'admin') on your ASUS RT-AC51U (90IG0150-BM3G00) for an extended period; you should change them immediately after logging in to secure your network.

How do I reset my ASUS RT-AC51U (90IG0150-BM3G00) to factory settings?

To reset your ASUS RT-AC51U (90IG0150-BM3G00) to factory settings, power on the router, locate the reset button, and press and hold it for about 10 seconds until the lights indicate a reset.