Product Support For
RT-AC3100 Find Another Model
By registering your device, you can easily manage your product warranty, get technical support and keep track of your repair status.
Upgrade Warranty: Here.
* Please note that the availability of the Premium Care product lines might differ by country.
Register Product

    BIOS & FIRMWARE

    • Driver & Tools
    • BIOS & FIRMWARE
    Firmware
    ASUS RT-AC3100 Firmware version 3.0.0.4.386_48313
    Version 3.0.0.4.386_48313
    41.77 MB
    2024/12/05

    Please unzip the firmware file, and then verify the checksum.
    SHA256: 766448b330a5d030c3a74e849db66e3c1a5a76a3bd1751420484fca01d321cf4

    1. Strengthened input validation and data processing workflows to further protect information security.
    2. Enhanced AiCloud password protection mechanisms, safeguarding against unauthorized access attempts.
    3. Enhanced device security through improved buffer handling in connection features.
    4. Refined data handling processes, ensuring secure and accurate information management.
    5. Enhanced file access control mechanisms, promoting a more secure operating environment.
    6. Strengthened certificate protection, providing enhanced data security.

    DOWNLOAD
    SHOW MORE DESCRIPTION
    ASUS RT-AC3100 Firmware version 3.0.0.4.386_48263
    Version 3.0.0.4.386_48263
    41.41 MB
    2023/11/28

    1. Resolved an issue causing excessive log generation due to bwdpi issue.
    2. Fixed a potential issue causing higher CPU utilization.

    Please unzip the firmware file, and then verify the checksum.
    SHA256: 5ff48798d582b26b99d1c48a4c6709004f2a3e72243687263fd7cb6bb022b2da

    DOWNLOAD
    SHOW MORE DESCRIPTION
    ASUS RT-AC3100 Firmware version 3.0.0.4.386.48260
    Version 3.0.0.4.386.48260
    41.42 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-CVE-2022-25595, CVE-2022-25596, CVE-2022-25596,
    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.
    MD5:2c1883c9ae5e0496889b3d0549929fca

    DOWNLOAD
    SHOW MORE DESCRIPTION
    ASUS RT-AC3100 Firmware version 3.0.0.4.386.46065
    Version 3.0.0.4.386.46065
    41.29 MB
    2022/01/25

    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.

    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 WAN connection bug.
    Fixed AiProtection bug.
    Fixed AiMesh guest network issues.
    Fixed DDNS issues where the WAN IP is IPv6
    Fixed UI bugs in Administration --> feedback.
    Fixed time zone error.
    Fixed v6plus related issues.
    Improved the connection stability.

    Please unzip the firmware file first then check the MD5 code.
    MD5:7cd598e33cf9e35e8941092b0a6891e8

    DOWNLOAD
    SHOW MORE DESCRIPTION
    ASUS RT-AC3100 Firmware version 3.0.0.4.386.43129
    Version 3.0.0.4.386.43129
    40.58 MB
    2021/05/18

    1.Fixed the FragAttack vulnerability.
    2.Fixed DoS vulnerability. Thanks for Tsinghua University NISL's contribution.
    3.Improved system stability.
    4.Fixed GUI bugs.
    5.Security Fixed: CVE-2020-25681, CVE-2020-25682, CVE-2020-25683, CVE-2020-25687, CVE-2020-25684, CVE-2020-25685, CVE-2020-25686

    Please unzip the firmware file first then check the MD5 code.
    MD5: 1a755970ad8a50ee3457ffe08430b741

    DOWNLOAD
    SHOW MORE DESCRIPTION
    ASUS RT-AC3100 Firmware version 9.0.0.4.386.41994 (Beta Version)
    Version 9.0.0.4.386.41994
    Beta Version
    40.49 MB
    2021/02/01

    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: c85075a8024d3063071b0f79b82dd2c3

    DOWNLOAD
    SHOW MORE DESCRIPTION
    ASUS RT-AC3100 Firmware version 3.0.0.4.386.41700
    Version 3.0.0.4.386.41700
    40.54 MB
    2021/01/20

    - Fixed Let's Encrypt not working properly.
    - Fixed web browsing issue when enabled parental control

    Please unzip the firmware file first then check the MD5 code.
    MD5: c3d2754e94ba31dc7e1a30cceb7b6e69

    DOWNLOAD
    SHOW MORE DESCRIPTION
    ASUS RT-AC3100 Firmware version 3.0.0.4.386.41535
    Version 3.0.0.4.386.41535
    40.63 MB
    2020/12/30

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

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

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

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

    8. Fixed Let's encrypt issue

    Please unzip the firmware file first then check the MD5 code.
    MD5: 1e073f87c24ba9c70bf4b26158cb2ce2

    DOWNLOAD
    SHOW MORE DESCRIPTION
    ASUS RT-AC3100 Firmware version 3.0.0.4.385.20631
    Version 3.0.0.4.385.20631
    38.13 MB
    2020/08/14

    - Fixed RCE vulnerability.

    Please unzip the firmware file first then check the MD5 code.
    MD5: 26b1c48fca06638131fdcb989263ce55

    DOWNLOAD
    SHOW MORE DESCRIPTION
    ASUS RT-AC3100 Firmware version 3.0.0.4.385.20630
    Version 3.0.0.4.385.20630
    38.13 MB
    2020/06/29

    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 3.0.0.4.384.81116, please refer to the "Update Manually" section in https://www.asus.com/support/FAQ/1008000 to update the firmware

    Please unzip the firmware file first then check the MD5 code.
    MD5: 7477ec9a24b147ec027f2e55edd725c1

    DOWNLOAD
    SHOW MORE DESCRIPTION
    ASUS RT-AC3100 Firmware version 3.0.0.4.385.20585
    Version 3.0.0.4.385.20585
    38.08 MB
    2020/06/17

    - Fixed Let's encrypt certification renew bugs.
    - Improved web history page loading speed.
    - Fixed OpenVPN related bugs
    - Fixed AiCloud share link bugs.
    - Fixed Cloud sync bugs.
    - 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: f09d164b3d3ed986c55e306813b53077

    DOWNLOAD
    SHOW MORE DESCRIPTION
    ASUS RT-AC3100 Firmware version 3.0.0.4.385.20490
    Version 3.0.0.4.385.20490
    38.12 MB
    2020/04/28

    - Improved connection stability.
    - Optimized CPU utilization.
    - Fixed firmware upgrade bugs.
    - Fixed CVE-2019-15126 (Kr00k) vulnerability.
    - Fixed a DDoS vulnerability.
    - Fixed Let's Encrypt related bugs.
    - Fixed folder creating bugs in Samba.
    - 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/
    [Important notice] If router firmware is 3.0.0.4.385.20490(or newer version) and you want to downgrade to 3.0.0.4.384.81116 (or previous version), you need to reset the router after firmware changed.

    Please unzip the firmware file first and then check the MD5 code.
    MD5: 5da5492c669853c44e8f521eec5209ff

    DOWNLOAD
    SHOW MORE DESCRIPTION
    ASUS RT-AC3100 Firmware version 3.0.0.4.384.81116
    Version 3.0.0.4.384.81116
    41.55 MB
    2019/09/23

    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.
    - Fixed User interface related bugs.

    Please unzip the firmware file first then check the MD5 code.
    MD5: 037f4b026f9afa21baa356ef97ef4b85

    DOWNLOAD
    SHOW MORE DESCRIPTION
    ASUS RT-AC3100 Firmware version 3.0.0.4.384.45717
    Version 3.0.0.4.384.45717
    41.36 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: 6425eeb1ad4cd9e7946263b18c7c442c

    DOWNLOAD
    SHOW MORE DESCRIPTION
    ASUS RT-AC3100 Firmware version 3.0.0.4.384.45713
    Version 3.0.0.4.384.45713
    41.35 MB
    2019/04/11

    Bug Fix
    - Fixed browser no response problem when enabled Traffic analyzer.
    - Fixed VLAN bug for Movistar.
    - Fixed wireless mac filter input issue.


    Please unzip the firmware file first then check the MD5 code.
    MD5: 57609ff2fb0d522f0a1039207d4d999b

    DOWNLOAD
    SHOW MORE DESCRIPTION
    ASUS RT-AC3100 Firmware version 3.0.0.4.384.45708
    Version 3.0.0.4.384.45708
    41.36 MB
    2019/03/29

    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 PC cannot find router name in My Network Places when enabling Samba service.
    - Fixed LAN LED not blinking problem.


    Please unzip the firmware file first then check the MD5 code.
    MD5: 777095ca8623031aa9c0a8543c8d5a52

    DOWNLOAD
    SHOW MORE DESCRIPTION
    ASUS RT-AC3100 Firmware version 3.0.0.4.384.45149
    Version 3.0.0.4.384.45149
    45.85 MB
    2018/12/06

    AiMesh
    - Improved AiMesh stability
    - Lyra, Lyra Mini, and Lyra Trio can be added as AiMesh node into RT-AC3100 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.

    New Alexa skill and IFTTT actions
    - Add Alexa skill “ ask ASUS ROUTER to report security status”
    - Add Alexa skill “ ask ASUS ROUTER how many devices are online”
    - Add IFTTT actions : Wake on LAN
    - Add IFTTT actions : check new firmware available and upgrade
    [Note] You have to upgrade the firmware version up to 3.0.0.4.384_45149 if you want to use these new Alexa skills and IFTTT actions.

    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: 9ebaffc020fe104933a768078ce17005

    DOWNLOAD
    SHOW MORE DESCRIPTION
    ASUS RT-AC3100 Firmware version 3.0.0.4.384.32799
    Version 3.0.0.4.384.32799
    45.33 MB
    2018/09/19

    Fixed WIFI stability issue.

    Please unzip the firmware file first then check the MD5 code.
    MD5: cb3ba1bb9ae6edddde087684643a7896

    DOWNLOAD
    SHOW MORE DESCRIPTION
    ASUS RT-AC3100 Firmware version 3.0.0.4.384.32738
    Version 3.0.0.4.384.32738
    45.33 MB
    2018/08/20

    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 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: 2109b160593550f61763a1d63a813fbb

    DOWNLOAD
    SHOW MORE DESCRIPTION
    ASUS RT-AC3100 Firmware version 3.0.0.4.384.21045
    Version 3.0.0.4.384.21045
    45.87 MB
    2018/06/01

    - Modified the EULA for DDNS, AiProtection, Adaptive QoS, Traffic Analyzer, Web history, Feedback.
    - Added Privacy page in Advanced settings
    - Fixed IPv6 bugs
    - Modified USB 3.0 related strings.
    - Increased port forwarding rules limit from 32 to 64.
    - Added more protection mechanism for OpenVPN account.
    - Fixed AiMesh bandwidth and extension channel sync issue.

    Please unzip the firmware file first then check the MD5 code.
    MD5: 9f2ab329ed3a8f2ab2c4faa831e16dae

    DOWNLOAD
    SHOW MORE DESCRIPTION
    Show all
    • Products certified by the Federal Communications Commission and Industry Canada will be distributed in the United States and Canada. Please visit the ASUS USA and ASUS Canada websites for information about locally available products.
    • All specifications are subject to change without notice. Please check with your supplier for exact offers. Products may not be available in all markets.
    • Specifications and features vary by model, and all images are illustrative. Please refer to specification pages for full details.
    • PCB color and bundled software versions are subject to change without notice.
    • Brand and product names mentioned are trademarks of their respective companies.
    • The terms HDMI and HDMI High-Definition Multimedia Interface, HDMI trade dress and the HDMI Logos are trademarks or registered trademarks of HDMI Licensing Administrator, Inc. in the United States and other countries.
      • The actual transfer speed of USB 3.0, 3.1, 3.2, and/or Type-C will vary depending on many factors including the processing speed of the host device, file attributes and other factors related to system configuration and your operating environment.
      • Actual data throughput and WiFi coverage will vary from network conditions and environmental factors, including the volume of network traffic, building material and construction, and network overhead, result in lower actual data throughput and wireless coverage.
      • Quoted network speeds and bandwidth based on current IEEE 802.11ac/802.11ax specifications. Actual performance may be affected by network and service provider factors, interface type, and other conditions. Connected devices must be 802.11ac/802.11ax compatible for best results.
      • WPA/WPA2 enterprise is only available on single router, is not available under AiMesh mode.
      • When traditional QoS is enabled, there will be limitations due to the actual Internet service bandwidth and different environment, and there may be a risk of speed reduction.
      • Due to the different power supply requirements on USB external hard disk and 4G/5G Modem device, to ensure that the external device can be used stably, if the USB external device exceeds the standard USB 2.0 (5V/500mA) and USB 3.1 Gen 1 (5V/900mA) power supply requirements, you need to use it with an independent external power supply.
      • If you use the product in conjunction with a third party service, you are responsible for complying with the third party provider's terms and conditions and privacy policy and are also at the risk of such use. ASUS does not provide support or guarantee continuous integration support for products that are not part of ASUS.