[2025 November Notification] uOS1.36 Update: What's New for USG FLEX H Series

Zyxel_Avani

The latest USG FLEX H firewall series is powered by the new uOS, which is designed to minimize system response time and improve overall system efficiency, including the following features:

• Secure, Cloud-Managed Remote Access Made Simple

Zyxel Nebula's Remote Access VPN delivers secure, encrypted connectivity for remote workers through its intuitive cloud management platform.With Nebula, you can configure VPN on your USG FLEX in a few minutes,eliminating the complexity traditionally associated with VPN deployment.

• Reliable VPN with Failover & Fallback

Zyxel VPN ensures always-on connectivity. With a secondary peer gateway, traffic automatically fails over during outages and smoothly falls back once the primary link is restored. Minimize downtime, keep users connected, and strengthen business resilience with intelligent VPN High Availability.

• Route Smarter with VPN Tunnel

Policy Routing lets you direct traffic exactly where it’s needed. By choosing a VPN Tunnel as the next hop, critical data travels securely and efficiently across sites. Enjoy optimized performance, simplified management, and stronger protection—all with the flexibility of intelligent traffic steering.

• AP Controller Enhancements *Local GUI only
  • AP Load Balancing/ Load Balancing Group-Optimize WiFi performance by evenly distributing client connections.
  • Per AP Radio settings- Fine-tune radio configurations for each AP to match your network needs.
  • Smart Mesh support MLO-Boost coverage and performance with next-gen multi-link mesh technology.
  • MAC Filtering (Block/Allow List)-Secure your network by controlling device access with flexible policies.
  • Hidden SSID- Add extra privacy by keeping your wireless network invisible to outsiders.

• IGMP Proxy for Smarter Multicast *Local GUI only

Zyxel now supports IGMP Proxy to efficiently manage multicast streams and optimize bandwidth for services like IPTV and streaming. By forwarding only requested traffic, it reduces network load and improves user experience.

* Static multicast forwarding is not yet supported—ensuring focus on reliable and efficient IGMP-based multicast today.

Release Date: October 20th, 2025

Supported Models: USG FLEX 50H/50HP/100H/100HP/200H/200HP/500H/700H