The Huawei HG659 is an aging hardware platform built on older Wi-Fi 5 (802.11ac) technology. While keeping its firmware updated fixes security vulnerabilities, it cannot change the underlying hardware limitations.

Adds support for updated network protocols, newer IPv6 standards, and improved parental controls. The ISP Dilemma: Customized vs. Generic Firmware

Conclusion Regular, careful firmware maintenance for the Huawei HG659 helps protect your home network from vulnerabilities, improves reliability, and ensures compatibility with evolving ISP services. For ISP-supplied units, rely on the provider’s update pathway; for non‑carrier retail units, obtain firmware from the manufacturer, back up settings, verify files, and update over a stable Ethernet connection to minimize risks.

If you encounter issues during the process, follow these steps:

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is a robust VDSL/ADSL Home Gateway widely used by internet service providers (ISPs) like One NZ to deliver high-speed connectivity. As of 2026, keeping your modem's firmware updated is crucial for maintaining network security, maximizing internet speeds, and ensuring compatibility with modern devices.

Look at the physical sticker on the back or bottom of your Huawei router to locate your specific login credentials.

The steps below explain how to update if your ISP supports manual firmware upgrades. These steps are specific to models that have the update option available.