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[Asus RT-AX88U] Experiences & Discussion

Discussion in 'ASUS AX Routers & Adapters' started by Balance, Oct 19, 2018.

  1. Balance

    Balance Regular Contributor

    Joined:
    Sep 4, 2017
    Messages:
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    Asus RT-AX88U
    Experiences & Discussion

    [​IMG]

    Preface
    The Asus RT-AX88U is the first router to support the 802.11ax draft specification, also known as Wi-Fi 6. The router is very similar to the RT-AC88U but has new radios and a new quad-core processor. The antenna's and 8 gigabit ethernet ports have remained the same, as have the two USB 3.0 ports.

    The RT-AX88U is controlled by a Broadcom BCM49408, a quad-core Arm chip running at 1.8 GHz and assisted by 1 GB of RAM and 256 MB of flash. Both the 2.4 GHz and the 5 GHz radio use the BCM43684 chip and therefore have 802.11ax support, 4x4 MIMO and 160MHz channels.

    The router also supports AiMesh, a technology from Asus that allows you to build multiple routers as a Mesh network.

    Where to buy: See [Asus RT-AX88U] Delivery times & prices

    Client devices
    At the moment there are no client devices that support 802.11ax. Intel has two WiFi adapters for laptops and PCs in development, the AX200 and AX201 and Asus is working on a PCE-AX88 adapter as the successor of the PCE-AC88.

    Usefull links

    Reviews
    • TBA
     
    Last edited: Oct 19, 2018
    Vexira likes this.
  2. mistabobdobalina

    mistabobdobalina New Around Here

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    Does anyone know know how to reach the 5G radio? Asus allows you to telnet into the RT-AX88U, but it seems I can only look at the 2.4G radio. I would like to check out phy stats and other radio info on the new 5G 11ax side. ( Advanced Settings: Administration - System: -> Enable Telnet
    [email protected]:/tmp/home/root# wl status
    SSID: "ASUS-AX6000-2.4G"

    Mode: Managed RSSI: 0 dBm SNR: 0 dB noise: -81 dBm Channel: 10

    BSSID: 0C:9D:92:01:81:58 Capability: ESS ShortSlot

    Supported Rates: [ 1(b) 2(b) 5.5(b) 6 9 11(b) 12 18 24 36 48 54 ]

    HE Capable:

    Chanspec: 2.4GHz channel 10 20MHz (0x100a)

    Primary channel: 10

    HT Capabilities:

    Supported HT MCS : 0-31

    Supported VHT MCS:

    NSS1 Tx: 0-11 Rx: 0-11

    NSS2 Tx: 0-11 Rx: 0-11

    NSS3 Tx: 0-11 Rx: 0-11

    NSS4 Tx: 0-11 Rx: 0-11

    Supported HE MCS:

    80 Mhz:

    NSS1 Tx: 0-11 Rx: 0-11

    NSS2 Tx: 0-11 Rx: 0-11

    NSS3 Tx: 0-11 Rx: 0-11

    NSS4 Tx: 0-11 Rx: 0-11


    [email protected]:/tmp/home/root# wl rssi

    65

     
  3. RMerlin

    RMerlin Super Moderator

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    All that info can be seen on the webui under Logs -> Wireless Logs.
     
  4. Balance

    Balance Regular Contributor

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    livefeed and AndyD like this.
  5. AndyD

    AndyD Occasional Visitor

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    Installed the AX88U yesterday, updated to latest firmware and created AIMESH with my old AC88U
    Keep getting some random br0: received packet on eth6 with own address as source address
    This happens randomly on 3 ethernet ports and doesn't affect stability.
    If I connect my ISP router, through which the AX88U makes a PPPOE call to provide internet to the network, via a second eth cable to one of the AX88U's lan ports for management reasons, the above message is repeated every few seconds.
    This didn't happen with my AC88U but I wasn't using AIMESH just had it connected to an RP-68U set up as an AP.
    Maybe an issue with early firmware?
    Cheers
     
  6. The Tinkerer

    The Tinkerer New Around Here

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  7. RamGuy

    RamGuy Senior Member

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    I'm running 384.8 BETA1 and its working great. Getting Full-Cone-NAT is really great for getting UPNP to work perfectly with various gaming services that expect all the NAT translations to allow for incoming traffic from all public IPv4-addresses.
     
  8. RamGuy

    RamGuy Senior Member

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    I did make two posts over in the 384.8 BETA thread;

    https://www.snbforums.com/threads/b...eta-is-now-available.49908/page-2#post-444062
    https://www.snbforums.com/threads/b...eta-is-now-available.49908/page-2#post-444065


    It seems like, even though the RT-AX88U has a higher clocked quad-core CPU it doesn't really help all that much when it comes to WAN-to-LAN and LAN-to-WAN performance. You still need to have "Runner" acceleration enabled to get over 300 mbps as the traffic seems to be limited to using a single core / thread. As soon as I enabled Adaptive QoS which disables the acceleration I'm never seeing more than ~300 mbps WAN-to-LAN and LAN-to-WAN throughput.
     
  9. livefeed

    livefeed Occasional Visitor

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    Runner acceleration? Is that a setting?
     
  10. RamGuy

    RamGuy Senior Member

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    Runner is the new branding for Flow Accelerator / Level 2 acceleration which has been described like this by Asus;

    Level 2: Level 1 (CTF) + FA (Flow Accelerator): Hardware NAT acceleration mechanism design for accelerating wired DHCP and Static IP connections.
    You will need Flow Accelerator option to fully take advantage of internet provider’s Gigabit service is offered.

    Flow Accelerator is achieved through special hardware related designs.

    EDIT:

    Both CTF and FA / Runner acceleration is on by default. But Level 2 (FA/Runner) will be disabled when you activate certain functions like Ai Protection or QoS as those require additional inspection of the NAT traffic in order to function so the acceleration can't be used.
     
    Ars92 likes this.
  11. rjih

    rjih Occasional Visitor

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    Location:
    Smyrna, GA
    In the USA does the RT-AX88U include the 5GHz wireless Channels between 48 and 149?
     
  12. RMerlin

    RMerlin Super Moderator

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    Yes, it supports DFS in the US.
     
  13. y2jdmbfan

    y2jdmbfan Regular Contributor

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    Is this the only Asus Router that does? Do you know if they will enable DFS on any other bands.
     
  14. RMerlin

    RMerlin Super Moderator

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    So far yes, AFAIK.

    DFS is specific to the 5 GHz band.
     
  15. y2jdmbfan

    y2jdmbfan Regular Contributor

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    I meant DFS on any other routers, not bands, sorry.
     
  16. RMerlin

    RMerlin Super Moderator

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    I don't know. It's probably unlikely, because that will require Asus to put each individual model through revalidation by the FCC for the addition of the DFS channels, which can be an expensive process.
     
  17. kryptto

    kryptto Regular Contributor

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    I see your post here, I am having similar issues posted here: https://www.snbforums.com/threads/asus-rt-ax88u-not-wireless-download-upload-speeds-very-slow.49958/

    Does this sound similar to your testing?
     
  18. MidKnight

    MidKnight Occasional Visitor

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    Anyone know if it supports hardware encryption/decryption?
     
  19. AndyD

    AndyD Occasional Visitor

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    Last edited: Nov 22, 2018
  20. RMerlin

    RMerlin Super Moderator

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    It supports both hardware-accelerated AES at the CPU level (for OpenVPN) and the hardware crypto engine (for IPSEC).