Asus RT-AC56U router review

300 + 867 Mbps
IEEE 802.11a/b/g/n/ac
Broadcom BCM4708 @ 800 MHz
256 MB / 128 MB

Asus introduced the RT-AC56U router in 2013. It is powered by Broadcom BCM4708 @ 800 MHz chipset, 256 MB of RAM, and 128 MB of flash memory.

Curious if this Asus router is a real gem? Stay tuned!

Table of Contents

  • Asus RT-AC56U specifications
    • Body, dimensions, weight
    • System, chipset, RAM, flash, power supply
    • Network, protocols, WAN and LAN ports
    • Wireless, antennas, speed, security
    • Connectivity
    • Administration, user interface, login information
    • Links
  • Verdict, Pros and Cons
  • Photos
  • Comparisons

Our personal experiences and opinions form the basis of this article. We aimed to share insights on a topic, and we hoped others would find it useful and inspirational. If you noticed any mistakes or missing details about the Asus RT-AC56U, please let us know.

Asus RT-AC56U / RT-AC56U

The RT-AC56U is a powerful router. It is full of features and made for advanced networking. Asus is known for being a respected and well-known maker of networking equipment.

Asus RT-AC56U specifications

Rated 3/5 based on 1548 user votes.


Dimensions147 x 205 x 66 mm

If you plan to move a lot and need to take your router with you, the size is important. Otherwise, the size isn't too crucial.

Asus RT-AC56U (RT-AC56U) / 2


ChipsetBroadcom BCM4708 @ 800 MHz
Flash128 MB
Alternative OSDD-WRT
Power supply19 V / 1.75 A

The Broadcom BCM4708 @ 800 MHz CPU provides processing power. Some router features and software work best when they have enough RAM to help them.

Asus RT-AC56U (RT-AC56U) / 4


LAN ports4 x 10/100/1000 Mbps
WAN ports1 x 10/100/1000 Mbps
Mobile networkyes, with USB dongle
VPN supportPPTP

The router also supports IPv6. This allows you to use the latest Internet Protocol. If you have a 1 Gbps or faster internet plan, you need gigabit Ethernet ports. The RT-AC56U ensures that you can use fast internet from your ISP fully. You can connect the 3G/4G USB dongle to the USB port on the RT-AC56U router. OpenVPN uses a certificate-based authentication system. This enhances security and provides a stronger method of verification.

Asus RT-AC56U (RT-AC56U) / 1


Antennas2 x 5.1 dBi
2 x 3.8 dBi
2.4 GHzyes
5 GHzyes
60 GHzno
StandardsIEEE 802.11a/b/g/n/ac
Speed300 + 867 Mbps
Transmit power24 dBm
Guest networkyes

The router supports the 2.4 GHz Wi-Fi. Using the 5 GHz band can move some devices from the crowded 2.4 GHz band. The AC Wi-Fi router is backward compatible with older Wi-Fi devices that support 802.11a/b/g/n standards. The introduction of WPA2 (Wi-Fi Protected Access 2) improved upon WEP. It provides stronger security. The Wi-Fi Protected Setup (WPS) lets you join a safe wireless network with the push of a button or a simple PIN entry.

Asus RT-AC56U (RT-AC56U) / 5


USB ports1 x USB 2.0
1 x USB 3.0
Print serveryes
File serveryes

The USB 2 port has a maximum theoretical data transfer rate of 480 megabits per second (Mbps). The USB 3 ports provide a fast interface for external storage with data transfer rates of up to 4.8 Gbps. By connecting a USB printer to the RT-AC56U router, you can make it accessible to all devices on your network. This router has a USB file server. It lets you connect external storage devices to your network.

Asus RT-AC56U (RT-AC56U) / 3


Default IP192.168.1.1
Default usernameadmin
Default passwordadmin

If you can't log in to your Asus router's setup panel, try resetting it. A reset can help you troubleshoot. It is highly recommended to change the default password of your RT-AC56U router. Do this after the initial setup.

Official site

Pros and Cons

Every router, including this Asus one, has its good sides and not-so-good sides. Let's take a closer look at both to get a full understanding of what this router can do. Just remember, this is just what I think, and you might see things differently.


  • generous memory
  • adequate flash
  • IPv6 capable
  • high-speed LAN port
  • high-speed WAN port
  • 3/4G USB modem capable
  • supports OpenVPN
  • works on 5 GHz band
  • WPS friendly
  • USB 2 compatible
  • USB 3 compatible
  • printserver functionality
  • fileserver operation


  • missing Wi-Fi 6 support
  • incompatible with WPA3

Asus RT-AC56U photos

Asus RT-AC56U / RT-AC56U photo
Asus RT-AC56U / RT-AC56U photo
Asus RT-AC56U / RT-AC56U photo
Asus RT-AC56U / RT-AC56U photo
Asus RT-AC56U / RT-AC56U photo
Asus RT-AC56U / RT-AC56U photo
Asus RT-AC56U / RT-AC56U

Asus RT-AC56U comparisons

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Updated: May 25, 2024

Robert Miller
For over 15 years, I've immersed myself in the world of networking devices as a tech aficionado. I've dedicated myself to thoroughly testing and analyzing routers and other networking gear. I aim to provide thorough reviews. They will give you the knowledge needed to improve your network.