V2.03.74r Jun 2026

This version added support for the ONU 2801RD , specifically allowing for the configuration of WAN bridging directly from the OLT interface.

Added support for double VLAN (QinQ) tagging in IGMP and optimized the default IGMP VLAN behavior for better multicast traffic management. v2.03.74r

Corrected an issue with incorrect configuration scopes for Wi-Fi channels . Context for the V1600D Series This version added support for the ONU 2801RD

For power users, offers the best balance of stability and modern features. v2.03.74r

v2.03.74r is likely a highly stable, mature, and thoroughly patched firmware version for a legacy piece of hardware.