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    BIOS & FIRMWARE

    • Driver & Tools
    • BIOS & FIRMWARE
    Firmware
    ASUS RT-AC86U Firmware version 3.0.0.4.386_51915
    バージョン 3.0.0.4.386_51915
    66.13 MB
    2023/07/10

    Security updates:
    -Fixed the cfg server vulnerability.
    -Fixed the vulnerability in the logmessage function CVE-2023-35086/ CVE-2023-35087.
    -Fixed lighttpd vulnerability, CVE-2023-35720.
    -Fixed several curl vulnerabilities including CVE-2023-28322, CVE-2023-28321, and CVE-2023-28319.
    -Fixed FFmpeg vulnerabilities, specifically CVE-2022-3964, CVE-2022-48434, and CVE-2022-3109.
    -Fixed OpenSSL vulnerability, CVE-2023-0464.
    -Fixed ReadyMedia vulnerabilitym CVE-2020-28926.
    -Fixed UPnP vulnerability CVE-2020-12695.
    -Upgraded sqlighte and resolved CVE-2020-11656 / CVE-2019-19646 / CVE-2019-8457 / CVE-2020-11655 / CVE-2018-20505 / CVE-2019-16168 / CVE-2019-19645 / CVE-2020-13435 / CVE-2020-13631 / CVE-2020-13434
    -Strengthened protection against SSH brute force attacks.
    -Fixed CVE-2023-39238,CVE-2023-39239,CVE-2023-39240. Thanks to Swings and Wang Duo from Chaitin Security Research Lab , C0ss4ck from Bytedance Wuheng Lab, 费新程 from X1cT34m.
    - Patched several command injection vulnerabilities, CVE-2023-38031, CVE-2023-38032, CVE-2023-38033,CVE-2023-39236,CVE-2023-39237, Thanks to Jincheng Wang from X1cT34m Laboratory of Nanjing University of Posts and Telecommunications

    Please unzip the firmware file, and then verify the checksum.
    SHA256: 6eb89b8a3b9ffb37bdd8bc3619210917a3afe2ccb92648ad15fbeabf2b751548

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    ASUS RT-AC86U Firmware version 3.0.0.4.386.51529
    バージョン 3.0.0.4.386.51529
    65.79 MB
    2023/04/13

    Security updates:
    -Fixed DoS vulnerabilities in firewall configuration pages. Thanks to Jinghe Gao's contribution.
    -Fixed DoS vulerabilities in httpd. Thanks to Howard McGreehan.
    -Fixed information disclosure vulnerability. Thanks to Junxu (Hillstone Network Security Research Institute) contribution.
    -Fixed CVE-2023-28702 and CVE-2023-28703. Thanks to Xingyu Xu(@tmotfl) contribution.
    -Fixed null pointer dereference vulnerabilities. Thanks to Chengfeng Ye, Prism Research Group - cse hkust contribution.

    Please unzip the firmware file first then check the MD5 code.
    MD5: b40babdef507e16043ec4dfebdceb98f

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    ASUS RT-AC86U Firmware version 3.0.0.4.386.51255
    バージョン 3.0.0.4.386.51255
    65.6 MB
    2023/03/02

    1.Fixed HTTP response splitting vulnerability.
    2.Fixed Samba related vulerabilities.
    3.Fixed cfg server security issues.
    4.Fixed Open redirect vulnerability.
    5.Fixed token authentication security issues.
    6.Fixed security issues on the status page.
    7.Fixed XSS vulnerability.
    8.Fixed CVE-2022-26376
    9.Fixed CVE-2018-1160
    10.Fixed IPv6-related bugs.
    11.Added a new login URL http://www.asusrouter.com to fixed the login issues.
    12.Optimize the AiMesh web interface
    13.Fixed network map UI bugs
    14.Fixed bugs related to Wi-Fi calling.
    15.Supported web history record exported.
    16.Fixed IPSec VPN server compatibility with Windows 10 VPN client.
    17.Improved AiMesh connection stability.
    18.Fixed IPTV issues.

    Please unzip the firmware file first then check the MD5 code.
    MD5: 9c55ed74c15323c29e0de1e106769107

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    ASUS RT-AC86U Firmware version 3.0.0.4.386.48260
    バージョン 3.0.0.4.386.48260
    62.81 MB
    2022/03/25

    1. Fixed OpenSSL CVE-2022-0778
    2. Added more security measures to block malware.
    3. Fixed Stored XSS vulnerability. Thanks to Milan Kyselica of IstroSec.
    4. Fixed CVE-2022-23970, CVE-2022-23971, CVE-2022-23972, CVE-2022-23973, CVE-2022-25595, CVE-2022-25596, CVE-2022-25597
    5. Added 3rd party DNS server list in WAN --> DNS to help users enhance the connection security.

    Please unzip the firmware file first then check the MD5 code.
    MD5:158b1ecf26e1a649d4b67555244d0976

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    ASUS RT-AC86U Firmware version 3.0.0.4.386.46092
    バージョン 3.0.0.4.386.46092
    62.74 MB
    2022/03/03

    Security
    - Fixed string format stacks vulnerability
    - Fixed cross-site-scripting vulnerability
    - Fixed informational vulnerability.
    Thanks to Howard McGreehan.

    -Fixed SQL injection vulnerability
    -Fixed json file traversal vulnerability
    -Fixed plc/port file traversal vulnerability
    -Fixed stack overflow vulnerability
    Thanks to HP of Cyber Kunlun Lab

    -Fixed authenticated stored XSS vulnerability
    Thanks to Luke Walker – SmartDCC

    -Fixed LPD denial of service vulnerability
    -Fixed cfgserver heap overflow vulnerability
    -Fixed cfgserver denial of service vulnerability
    Thanks to TianHe from BeFun Cyber Security Lab.

    -Fixed CVE-2021-34174, CVE-2022-23972, CVE-2022-23970, CVE-2022-23971, CVE-2022-23973

    Added more ISP profile
    Digi 1 - TM
    Digi 2 - TIME
    Digi 3 - Digi
    Digi 4 - CTS
    Digi 5 - ALLO
    Digi 6 - SACOFA
    Maxis - CTS
    Maxis - SACOFA
    Maxis - TNB/ALLO

    Fixed AiMesh guest network issues.
    Fixed DDNS issues where the WAN IP is IPv6
    Fixed UI bugs in Administration --> feedback.
    Fixed time zone error.
    Improved the connection stability.
    Fixed IPSecVPN issues.

    Please unzip the firmware file first then check the MD5 code.
    MD5:a1fec62f9b680833512bb6f7e2b5c2c7

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    ASUS RT-AC86U Firmware version 3.0.0.4.386.45956
    バージョン 3.0.0.4.386.45956
    62.68 MB
    2021/11/25

    This version includes several vulnerability patches.
    BusyBox
    - CVE-2016-2148
    - CVE-2016-6301
    - CVE-2018- 1000517

    cURL
    - CVE-2020-8169
    - CVE-2019-5481
    - CVE-2019-5482
    - CVE-2018-1000120
    - CVE-2018- 1000300
    - CVE-2018-16839

    Lighttpd
    - CVE-2018-19052

    Linux
    - CVE-2020-14305
    - CVE-2020-25643
    - CVE-2019-19052

    lldpd
    - CVE-2020-27827

    Avahi
    - CVE-2017-6519

    hostapd
    - CVE-2021-30004
    - CVE-2019-16275

    OpenVPN
    - CVE-2020-11810
    - CVE-2020-15078

    wpa
    - CVE-2021-30004
    - CVE-2021-27803
    - CVE-2019-11555
    - CVE-2019-9499
    - CVE-2019-9498
    - CVE-2019-9497
    - CVE-2019-9496
    - CVE-2019-9495
    - CVE-2019-9494
    - CVE-2017-13086
    - CVE-2017-13084
    - CVE-2017-13082
    - CVE-2016-4476
    - CVE-2015-8041

    - Fixed envrams exposed issue. Thanks to Quentin Kaiser from IoT Inspector Research Lab contribution.
    - Fixed Stored XSS vulnerability.
    - Fixed CVE-2021-41435, CVE-2021-41436.
    Thanks to Efstratios Chatzoglou, University of the Aegean
    Georgios Kambourakis, European Commission at the European Joint Research Centre
    Constantinos Kolias, University of Idaho.
    - Fixed Stack overflow vulnerability. Thanks to Jixing Wang (@chamd5) contribution.
    - Fixed information disclosure vulnerability .Thanks to CataLpa from DBappSecurity Co.,Ltd Hatlab and 360 Alpha Lab contribution.
    - Fixed httpd and Cfg server DoS vulnerability
    Thanks to Wei Fan from NSFOCUS GeWuLAB.
    - Fixed stack overflow vulnerability
    - Fixed DoS vulnerability
    Thanks for the contribution of Fans0n, le3d1ng, Mwen, daliy yang from 360 Future Security Labs

    Please unzip the firmware file first then check the MD5 code.
    MD5:c924f36ddba3fcaab42513f01a989483

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    ASUS RT-AC86U Firmware version 3.0.0.4.386.44470
    バージョン 3.0.0.4.386.44470
    61.89 MB
    2021/07/14

    1. Improved system stability.
    2. Add JPNE v6plus support. (Beta release)
    3. Added Auto firmware upgrade in Administration-->Firwmare Upgrade
    4. Fixed envrams exposed issue. Thanks for Quentin Kaiser from IoT Inspector Research Lab contribution.

    Please unzip the firmware file first then check the MD5 code.
    MD5: 798c182f86cbf8d6ce171a864bc79be5

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    ASUS RT-AC86U Firmware version 3.0.0.4.386.42643
    バージョン 3.0.0.4.386.42643
    61.87 MB
    2021/04/28

    1. Fixed CVE-2021-3450, CVE2021-3449 OpenSSL related vulnerability.
    2. Fixed authentication bypass vulnerability. Special thank Chris Bellows, Darren Kemp – Atredis Partners contribution.
    3. Fixed PPTP and OpenVPN server username/password GUI bug.
    4. Fixed high CPU utilization issue.
    5. Fixed the fragattacks vulnerability.

    Please unzip the firmware file first then check the MD5 code.
    MD5: 3c8e995a903ab94877359f6e3b26482d

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    ASUS RT-AC86U Firmware version 9.0.0.4.386.41994 (Beta Version)
    バージョン 9.0.0.4.386.41994
    ベータバージョン
    61.7 MB
    2021/02/03

    Security Fixed:
    Fixed CVE-2020-25681, CVE-2020-25682, CVE-2020-25683, CVE-2020-25687, CVE-2020-25684, CVE-2020-25685, CVE-2020-25686

    Please be noted this is a quick fix beta version for DNSmasq vulnerabilities. Refer to "Method 2: Update Manually" in https://www.asus.com/support/FAQ/1008000 to update this firmware.

    Please unzip the firmware file first then check the MD5 code.
    MD5: 0231b2391f86615a4314e151f4ecd21d

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    ASUS RT-AC86U Firmware version 3.0.0.4.386.40451
    バージョン 3.0.0.4.386.40451
    60.01 MB
    2020/10/22

    New features

    1. AiMesh 2.0
    - System optimization: one click in AiMesh to optimize the topology
    - System Ethernet backhaul mode, all nodes will only connect by ethernet, all bands will be released for wireless clients.
    - System factory default and reboot.
    - Client device reconnect, make the device to offline and online again.
    - Client device binding to specific AP.
    - Guest WiFi on all Mesh nodes (all node need to upgrade to 3.0.0.4.386 firmware)
    - Access nodes USB application.

    Connection priority and Ethernet backhaul mode introduction
    https://www.asus.com/support/FAQ/1044184

    How to setup ASUS AiMesh or ZenWiFi Mesh Ethernet backhaul under different conditions
    https://www.asus.com/support/FAQ/1044151/

    2. New Family interface in ASUS router App.
    ASUS Router App for iOS must greater or equal to iOS v1.0.0.5.75
    Android version greater or equal to v1.0.0.5.74

    3. The unit of the WiFi time scheduler goes to 1 minute.

    4. Support IPSec IKE v1 and IKE v2, and you can use the Windows 10 native VPN client program to connect to the router's IPSec VPN server. The Windows 10 new FAQ is in https://www.asus.com/support/FAQ/1033576

    5. 2.4 and 5G on the network map could be configured in the same tab.

    6. Captcha for login can be disabled in administration -> system.

    7. Printer server port can be disabled on the USB app page.

    8. Clients which connect to the guest network can be viewed in the network map -->view list --> interface

    Please unzip the firmware file first then check the MD5 code.
    MD5: a707219b5944bc0b55098a4c7fe781f5

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    ASUS RT-AC86U Firmware version 3.0.0.4.384.82072
    バージョン 3.0.0.4.384.82072
    56.18 MB
    2020/08/17

    - Fixed buffer overflow vulnerability
    - Fixed wireless performance drop issue after send the feedback.
    - Fixed static WAN IP connection issues.

    Please unzip the firmware file first then check the MD5 code.
    MD5: 2788c2f2e211e7396dc5004ce5226797

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    ASUS RT-AC86U Firmware version 3.0.0.4.384.81992
    バージョン 3.0.0.4.384.81992
    56.11 MB
    2020/07/09

    Security update
    - Fixed CVE-2020-12695 (CallStranger)
    - Fixed Reflected XSS vulnerability.
    - Fixed Directory traversal vulnerability.
    - Fixed CVE-2017-15653.

    The update server transport layer security was upgraded and the old protocol was removed.
    If your router firmware version is lower than 3.0.0.4.384.81352, please refer to the "Update Manually" section in https://www.asus.com/support/FAQ/1008000 to update the firmware.

    This version has more security processes. If you want to rollback to the previous version, please do a factory default reset.

    Please unzip the firmware file first then check the MD5 code.
    MD5: c4d70d592c735c935d711b05908de05c

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    ASUS RT-AC86U Firmware version 3.0.0.4.384.81930
    バージョン 3.0.0.4.384.81930
    56 MB
    2020/06/17

    - Fixed Let's encrypt certification renew bugs.
    - Improved web history page loading speed.
    - Fixed OpenVPN related bugs

    Please unzip the firmware file first then check the MD5 code.
    MD5: c9ee3cbfc16ca9ecd9eed0561fa1145b

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    ASUS RT-AC86U Firmware version 3.0.0.4.384.81918
    バージョン 3.0.0.4.384.81918
    56.06 MB
    2020/05/27

    - Fixed game setting page UI bugs.
    - Fixed AiCloud share link bugs.
    - Fixed AiCloud connection bugs with AiMusic App.
    - Fixed Cloud sync bugs.
    - VPN clients can be turned on/off by the ASUS router app.
    - Fixed offline client removing problem with ASUS router app.
    - In the previous version, the certificate for https login needed to be installed again after system reboot, and this version fixed this problem.
    - Adaptive QoS supported more apps
    Work-From-Home: WeChat Work®, RescueAssist, Tencent/VooV Meeting®
    Learn-From-Home: LinkedIn Learning®, Binkist®, Skillshare®, edX®
    Media Streaming: SiriusXM®, Bilibili®
    Indoor training: The Sufferfest®, Bkool Fitness®, TrainerRoad®, Rouvy®

    Please unzip the firmware file first then check the MD5 code.
    MD5: 892a6e8a8c4e27bdd1c7ff2bfbd92df6

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    ASUS RT-AC86U Firmware version 3.0.0.4.384.81858
    バージョン 3.0.0.4.384.81858
    56 MB
    2020/05/04

    - Improved connection stability.
    - Optimized CPU utilization.
    - Fixed some UI bugs.
    - Fixed login bugs.
    - Support router certificate export. After import the certificate to the computer you will not see the warning message when login with https.Please refer to https://www.asus.com/us/support/FAQ/1034294/

    Please unzip the firmware file first and then check the MD5 code.
    MD5: dc2cfb7297d8089b4f6022d0105313bc

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    ASUS RT-AC86U Firmware version 3.0.0.4.384.81369
    バージョン 3.0.0.4.384.81369
    59.89 MB
    2020/03/30

    1. Update Adaptive QoS categories: Help you to prioritize the mission-critical applications
    Those people who work-from-home & learn-from-home will greatly benefit from this new feature with optimized streaming experiences.
    New Supported Categories & Apps:
    - Video conferencing, including Microsoft Teams®, ZOOM®, Skype®, Google Hangouts®, BlueJeans®
    - Online learning, including Khan academy®, Udemy®, Coursera®, TED®, VIPKiD®, 51Talk®, XDF®, Xueersi®
    - Streaming, including YouTube®, Netflix®, HBO NOW®, Amazon Prime Video®, Disney+®, ESPN®, MLB.com®, iQIY®
    - Indoor training, including Zwift®, Peloton®, Onelap®
    Stay tuned and more apps are coming to the list soon!

    2. Support Mobile Game Mode
    - One-click prioritizing your mobile device to the highest and ensure you the best mobile gaming experiences.
    - Install/Update ASUS Router App (Android supports later than 1.0.0.5.44; iOS supports later than 1.0.0.5.41)

    Please unzip the firmware file first and then check the MD5 code.
    MD5: e50909a33311f80b922c61d6edcfd7bd

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    ASUS RT-AC86U Firmware version 3.0.0.4.384.81352
    バージョン 3.0.0.4.384.81352
    59.59 MB
    2020/03/10

    - Fixed CVE-2019-15126 (Kr00k) vulnerability.

    Please unzip the firmware file first then check the MD5 code.
    MD5: c92351241c287643bd39832de852977e

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    ASUS RT-AC86U Firmware version 3.0.0.4.384.81351
    バージョン 3.0.0.4.384.81351
    59.59 MB
    2019/11/20

    - Fixed a DDoS vulnerability.
    - Fixed Let's Encrypt related bugs.
    - Fixed folder creating bugs in Samba.
    - Fixed dual wan failover bugs while the primary wan type is L2TP.

    Please unzip the firmware file first then check the MD5 code.
    MD5: 2b73b992d0ea657cae03a918e31a27ad

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    ASUS RT-AC86U Firmware version 3.0.0.4.384.81049
    バージョン 3.0.0.4.384.81049
    59.3 MB
    2019/09/05

    Security fix
    - Fixed a DDoS vulnerability. Thanks for Altin Thartori's contribution.

    Bug fix
    - Fixed web control interface login problem.
    - Fixed Network map clist list issues.
    - Fixed block internet access problem when clients connected to AiMesh node
    - Fixed Samba server compatibility issue.
    - Fixed OpenVPN related bugs.
    - Fixed schedule reboot bugs.
    - Improved AiMesh compatibility.
    - Improved system stability.

    Please unzip the firmware file first then check the MD5 code.
    MD5: f09ec9bf293979e8ebe8a8c5bda6317b

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    ASUS RT-AC86U Firmware version 3.0.0.4.384.45717
    バージョン 3.0.0.4.384.45717
    57.77 MB
    2019/05/13

    - Fixed DDoS vulnerability.

    - Fixed AiCloud vulnerability. Thanks for Matt Cundari's contribution.

    - Fixed command injection vulnerability. Thanks for S1mba Lu's contribution.

    - Fixed buffer overflow vulnerability. Thanks for Javier Aguinaga's contribution.

    Please unzip the firmware file first then check the MD5 code.
    MD5: 03041f5d8987efc3bc64a63efe2a979f

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    ASUS RT-AC86U Firmware version 3.0.0.4.384.45713
    バージョン 3.0.0.4.384.45713
    57.76 MB
    2019/04/18

    Security Fix
    - Fixed CVE-2018-20334
    - Fixed CVE-2018-20336
    - Fixed null pointer issue. Thanks for CodeBreaker of STARLabs’ contribution.
    - Fixed AiCloud buffer overflow vulnerability. Thanks for Resecurity International's contribution.

    Bug Fix
    - Fixed AiMesh LAN IP issue when router using IPv6 WAN.
    - Fixed AIMesh connection issues.
    - Fixed Network Map related issues.
    - Fixed Download Master icon disappear issue.
    - Fixed LAN LED not blinking problem.
    - Fixed browser no response problem when enabled Traffic analyzer.
    - Fixed wireless mac filter input issue.


    Please unzip the firmware file first then check the MD5 code.
    MD5: 3572b70885cc2a54751ca17aaaa479e9

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    ASUS RT-AC86U Firmware version 3.0.0.4.384.45149
    バージョン 3.0.0.4.384.45149
    60.66 MB
    2018/12/05

    AiMesh
    - Improved AiMesh stability
    - Lyra, Lyra Mini, and Lyra Trio can be added as AiMesh node into RT-AC86U network.
    Please refer to https://www.asus.com/support/FAQ/1038071 for more detail.

    Security
    - Fixed CVE-2018-14710, CVE-2018-14711, CVE-2018-14712, CVE-2018-14713, CVE-2018-14714. Thanks for Rick Ramgattie's contribution.
    - Fixed AiCloud/ Samba account vulnerability. Thanks for Matthew Cundari's contribution.
    - Fixed DoS vulnerability. Thanks for Ruikai Liu's contribution.
    - Fixed CVE-2018-17020, CVE-2018-17021, CVE-2018-17022.
    - Fixed stored XSS vulnerability. Thanks for Duda Przemyslaw's contribution.
    - Updated OpenSSL library.

    Bug fixes and improvement
    - Improved wireless stability.
    - Modified “Dual Wan” user interface.
    - Modified “Port Forwarding” user interface.
    - Modified “Restore” user interface.
    - Fixed GUI bugs on user feedback page.
    - Fixed “Adaptive QoS” bugs.

    Please unzip the firmware file first then check the MD5 code.
    MD5: 1ca78fe37882cac19fbf9c5a50cb2c0f

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    ASUS RT-AC86U Firmware version 3.0.0.4.384.32799
    バージョン 3.0.0.4.384.32799
    59.86 MB
    2018/09/14

    Fixed WIFI stability issue.


    Please unzip the firmware file first then check the MD5 code.
    MD5: ac2a2fe7132a9567fa8c17ff5c157b71

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    ASUS RT-AC86U Firmware version 3.0.0.4.384.32797
    バージョン 3.0.0.4.384.32797
    59.86 MB
    2018/08/24

    AiMesh new features
    - Supported creating mesh system with new router, BlueCave.
    - Added Roaming block list in Advanced Settings --> Wireless.
    You can add devices into block list and this device will not be roamed between AiMesh nodes.
    - Supported ethernet onboarding. User can use ethernet cable.
    You can use ethernet cable to connect AiMesh router LAN port and AiMesh node WAN port first and run the adding node process to build the mesh system.

    Security fixes.
    - Fixed Reflected XSS vulnerability.
    - Fixed CSRF vulnerability.
    - Fixed command injection vulnerability.
    - Fixed stack buffer overflow vulnerability.
    Thanks for Rick Ramgattie contribution.

    Fixed Adaptive QoS upload bandwidth setting issue.
    Fixed 4-wires ethernet cable compatibility issues.
    Fixed USB hard drive over 2TB compatibility issues.
    Fixed Samba/FTP folder permission issues.
    Added USB3.0/2.0 mode switch setting in Administration --> System --> USB Settings.

    Please unzip the firmware file first then check the MD5 code.
    MD5: 0d22564746bd9d10251624c72475058e

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    ASUS RT-AC86U Firmware version 3.0.0.4.384.21140
    バージョン 3.0.0.4.384.21140
    60.31 MB
    2018/07/10

    - [DDNS] Modified the procedure of DDNS service register under dual wan load balance mode
    - [WAN] Modified detect logic of internet connection
    - [AiMesh] Fixed AiMesh onboarding unsuccessfully once smart connect is enabled
    - [AiMesh] Modified AiMesh nodes notification procedure
    - [GUI] Fixed AiProtection GUI bugs.
    - [GUI] Updated OpenVPN server FAQ URL.


    Please unzip the firmware file first then check the MD5 code.
    MD5: caf32b5ead8501a0dbb7926e37be335a

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