ASUS RT-BE86U review

Design

The upright shape takes less desk depth than a broad, flat gaming router. Its external antennas can be repositioned, and the black front has a more restrained appearance than a model covered in colored lighting. Leave space around the body and antennas instead of enclosing it in a cabinet.

The verified configuration is a single Black router, with a power adapter and Ethernet cable included. A single unit is a sensible starting point when the modem is reasonably central; a difficult layout may still need another access point regardless of the router’s advertised coverage.

Wireless Performance

Wi-Fi 7 brings higher potential link rates on the existing bands and support for Multi-Link Operation, which allows compatible devices to use the available bands together or switch between them. The RT-BE86U still stops at 160 MHz channels. It has neither a 6 GHz radio nor the 320 MHz channels associated with some faster Wi-Fi 7 systems.

That distinction matters if a new laptop could benefit from a less crowded 6 GHz connection. For a household mainly using older Wi-Fi clients, faster Ethernet connections may deliver a more immediate benefit than a change in wireless generation. The advertised BE6800 figure combines the radios’ maximum rates; it is not the speed of one connected device.

Dong Knows Tech measured sustained 5 GHz throughput above 2 Gb/s in its 2024 testing. It also found little client-speed improvement from enabling MLO on that firmware.¹ I would treat MLO as a compatibility-dependent feature, not a reason to expect an automatic doubling of speed. Walls, channel availability and the client remain important.

Connectivity

The port arrangement allows a useful choice. Put the Internet connection on the 10-gigabit port and the other four ports can serve 2.5-gigabit devices. Use the 2.5-gigabit WAN option instead and the 10-gigabit socket becomes available for a local storage server or switch.

There is only one 10-gigabit socket, so the router cannot directly provide separate 10-gigabit Ethernet links for both a modem and a local server. That is the main limit to understand before buying it for a demanding home studio. Dong Knows Tech’s wired test sustained over 2.3 Gb/s through its 2.5-gigabit setup; it did not establish 10-gigabit routing performance between two 10-gigabit ports.¹

Compared with RT-AX86U Pro, the improvement is substantial: its single 2.5-gigabit connection and five Gigabit ports give way to an entirely faster set. There is a small practical regression, however, because the total drops from six Ethernet sockets to five. Count the devices you intend to cable before assuming a switch will be unnecessary.

USB and VPN Features

The two USB ports offer useful flexibility for shared storage or supported cellular tethering. An attached drive can provide files and media on the network, while a compatible phone connection can serve as an Internet backup. A cellular data plan and device compatibility still determine whether that backup is practical.

WireGuard and OpenVPN support give more options for remote access and routing selected devices through a VPN. VPN Fusion can manage different tunnels alongside ordinary Internet access. I would value this if specific devices need a VPN, while keeping the setup simpler if the household has no such requirement. A third-party VPN service is a separate purchase where required.

Mesh Networking

AiMesh provides a path to wider coverage with compatible ASUS routers. Fast wired backhaul is a particular strength here: the available 10-gigabit and 2.5-gigabit ports can connect nodes without using the client radios to carry traffic between them. The other node and the connecting equipment must support the desired speed.

A wireless AiMesh connection is also possible, but it uses the same two bands that serve nearby devices. I would favor Ethernet between rooms when it is available. When combining different ASUS generations, check the supported pairing and firmware rather than assuming every Wi-Fi 7 feature carries over to an older node.

Software and Security

Guest Network Pro and VLAN controls are useful if you want to separate visitors, connected home devices or a VPN-connected group from the main household network. This is a stronger reason to choose the RT-BE86U than a long list of features you will never configure. It also rewards a little setup time: isolated devices may lose access to a printer or server unless the network rules allow it.

The app handles convenient day-to-day controls, while the browser interface provides more detailed options. AiProtection Pro and parental controls are included without a recurring subscription. Filtering and schedules can support household rules, but they do not guarantee that every unwanted activity will be blocked.

Install current firmware during setup. ASUS’s release notes include fixes for Wi-Fi roaming, 2.5-gigabit port operation and security issues. These improvements matter more than relying on the software that happened to ship in the box.

A gaming-priority port, Mobile Game Mode and Adaptive QoS can prioritize traffic when devices compete. They cannot increase the capacity of the Internet plan or remove latency elsewhere on the route to a game server.

Alternatives

An existing RT-AX86U or RT-AX86U Pro can remain perfectly adequate for a household whose Internet connection and wired devices fit its ports. The BE86U becomes a more convincing upgrade when several devices need connections above Gigabit speed or the newer network-separation features will be used.

If wireless performance is the main reason for replacing a router, compare a tri-band model that includes 6 GHz before committing. If both the Internet and local storage need individual 10-gigabit links, look for two suitable 10-gigabit ports. Those requirements are more useful shopping criteria than the largest combined wireless-speed label.

Verdict

The RT-BE86U makes a strong case as a flexible router for a home moving beyond Gigabit Ethernet. Its local controls and included family features add to that appeal. I would buy it when its particular port arrangement fits the network, while choosing a different design for 6 GHz wireless access or separate 10-gigabit WAN and LAN connections.