This version of firmware is only applicable to RT-AX1800HP V2, please check the model name from the product SN label or box label before utilizing.

Improve system stability.

We recommend upgrading to this version to maintain optimal protection.

This version of firmware is only applicable to RT-AX1800HP, please check the model name from the product SN label or box label before utilizing.

New Features
- New Time Zone Options: Added "Vancouver, Whitehorse (PST7)" and "Edmonton, Yellowknife (MST6)" time zone options for Canada.

Bug Fixes and Enhancements
- Strengthened firewall rule configuration for UPnP, improving port-forwarding stability and firewall rule restoration reliability.

Security Fixes
- Strengthened data handling in Networks configuration functions.
- Improved data validation in Networks rule list processing.
- Fixed a data-handling issue in the DNS query caching component.
- Strengthened verification when a software component downloads external resources, improving connection security.
- Adjusted the information response mechanism of the device discovery service, strengthening protection of device information.
- Fixed a data-handling issue in a firmware component on a specific model.
- Improved data-display handling in a web function to enhance browsing security.
- Strengthened input data validation in a device-pairing web function.
- Improved data validation in the configuration file upload/sync function.
- Improved how the account service restart process is handled.
- Removed a non-essential internal function endpoint, strengthening overall access control.
- Adjusted the debug file access mechanism, strengthening protection of internal data.
- Strengthened data handling in the system logging function.
We recommend upgrading to this version to maintain optimal protection.

This version of firmware is only applicable to RT-AX1800HP V2, please check the model name from the product SN label or box label before utilizing.

Security Fixes
- Enhanced DNS name handling to address a potential memory issue that could occur in rare cases during name format conversion, improving system security and robustness.
- Improved safeguards for execution modules to reduce the risk of substitution during certain processes.

This version of firmware is only applicable to RT-AX1800HP, please check the model name from the product SN label or box label before utilizing.

Security Fixes
- Enhanced system security by addressing an unsafe remote script execution mechanism in.
- Improved system security by addressing a heap buffer overflow vulnerability during cache handling.
We recommend upgrading to this version to ensure up-to-date protection.

This version of firmware is only applicable to RT-AX1800HP V2, please check the model name from the product SN label or box label before utilizing.
Security Fixes
- Enhanced input validation and protection to reduce the risk of command injection and SQL injection.
- Hardened environment variable handling.
- Hardened protections around specific logging/command composition flows to reduce potential injection risks.
- Patched a command injection risk in a specific network diagnostic function.

We recommend upgrading to this version to maintain best protection.

This version of firmware is only applicable to RT-AX1800HP, please check the model name from the product SN label or box label before utilizing.

Strengthened input sanitization mechanism.

This version of firmware is only applicable to RT-AX1800HP, please check the model name from the product SN label or box label before utilizing.

- Enhanced system stability.
- Enhanced input validation and refactored legacy string handling routines to ensure robust memory management.
- Implemented comprehensive validation and expanded command filtering in the web history API.
- Strengthened input validation and directory handling in the VPN configuration upload interface.
- Fixed an issue that allowed certain user settings to be bypassed, improving overall user control and protection.

This version of firmware is only applicable to RT-AX1800HP V2, please check the model name from the product SN label or box label before utilizing.

- Enhanced system stability.
- Enhanced input validation and refactored legacy string handling routines to ensure robust memory management.
- Implemented comprehensive validation and expanded command filtering in the web history API.
- Strengthened input validation and directory handling in the VPN configuration upload interface.
- Fixed an issue that allowed certain user settings to be bypassed, improving overall user control and protection.
- Password Policy Upgrade – Minimum of 10 characters, including at least one letter, one digit, and one special character; disallows consecutive identical characters; hardens defense against brute-force attacks.
- HTTPS on 8443 – Management interface now served over TLS by default.
- UPnP Disabled – Universal Plug and Play starts in the off state for reduced surface exposure.
- Authentication Logic Refactor – Removed redundant code paths for a lean sign-in flow.
- Memory Safety Guard (CWE-476) – Introduced null-reference protections across critical services.
- Enhanced IPsec Parameter Validation – The existing input checks have been hardened.
- Data Exposure Mitigation (CWE-200) – Reinforced controls on sensitive pathways.
- Detailed Audit Trails – Expanded logging within the authentication module.

This version of firmware is only applicable to RT-AX1800HP, please check the model name from the product SN label or box label before utilizing.

Important: After installing this firmware, we strongly recommend performing a factory-default reset to activate every new security adjustment.

Security Enhancements
- Password Policy Upgrade – Minimum 10 characters with at least 1 letter, 1 digit and 1 special symbol, and no consecutive identical characters; hardens defense against brute-force attacks.
- HTTPS on 8443 – Management interface now served over TLS by default.
- UPnP Disabled – Universal Plug and Play starts in the off state for reduced surface exposure.
- Authentication Logic Refactor – Removed redundant code paths for a lean sign-in flow.
- Memory Safety Guard (CWE-476) – Introduced null-reference protections across critical services.
- Enhanced IPsec Parameter Validation – The existing input checks have been hardened.
- Data Exposure Mitigation (CWE-200) – Reinforced controls on sensitive pathways.
- Detailed Audit Trails – Expanded logging within the authentication module.

System Improvements
- Connection Stability – Core algorithms refined for steadier links.
- Scheduling Accuracy – Timed tasks execute reliably under PPPoE, PPTP and L2TP WAN modes.
- Client List Maintenance – Resolved an issue that prevented offline devices from being removed from the client list.

This version of firmware is only applicable to RT-AX1800HP V2, please check the model name from the product SN label or box label before utilizing.

Fixed the IPTV compatibility issue for Now TV.

This version of firmware is only applicable to RT-AX1800HP V2, please check the model name from the product SN label or box label before utilizing.

1. Fixed the UI issue in Chrome.
2. Fixed client binding issues in Mesh scenarios.
3. Enhanced input parameter handling techniques to improve data processing stability and system security.
4. Enhance system access control mechanisms.

This version of firmware is only applicable to RT-AX1800HP, please check the model name from the product SN label or box label before utilizing.
1. Fixed the UI issue in Chrome.
2. Fixed client binding issues in Mesh scenarios.
3. Enhanced input parameter handling techniques to improve data processing stability and system security.
4. Enhance system access control mechanisms.

This version of firmware is only applicable to RT-AX1800HP V2, please check the model name from the product SN label or box label before utilizing.

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

Please unzip the firmware file, and then verify the checksum
SHA256: cf92112d42dc3c166304f3d3165f959aaefb45dbd00687abcca657f2a9d7fb38

This version of firmware is only applicable to RT-AX1800HP, please check the model name from the product SN label or box label before utilizing.

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

Please unzip the firmware file, and then verify the checksum
SHA256: 852f1f571b3ea3fec99b1c7eab055d89763b7ec2c7e1ca4532df83289f727727

This version of firmware is only applicable to RT-AX1800HP, please check the model name from the product SN label or box label before utilizing.

Bug fixes and functionality modifications:
-Resolved the issue with login and password changes.
-Resolved bandwidth errors when setting 5GHz channel to 116.
-Introduced support for disabling the 11b feature on the 2.4GHz band.
-Enhanced Dynamic DNS functionality and integrated support for HE.NET.
-Improved the Smart Connect feature.
-Implemented an LED on/off option for the AiMesh node.
-Optimized the AiMesh Topology page for better performance.
-Increased the stability of the AiMesh system.


Security updates:
-Enhanced protection for credentials.
-Enhanced security for OTA firmware 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: e57ef219c82e675d7c1de00408b00e1d

This version of firmware is only applicable to RT-AX1800HP V2, please check the model name from the product SN label or box label before utilizing.

1. Add Wiregraurd VPN
2. GUI bug fixes

Please unzip the firmware file, and then verify the checksum.
SHA256: 373faac69fd1268669afc932232db1ae94063c11df9a868228d2a985f05851ac