I'm curious on why im not getting latest patch, According to the firmware version, there is already a Deco X20(US)_V3_1.1.8 Build 20240119 firmware. However, I tried to upload via web management but getting fail message. my deco is X20(3.0), error message : (Upgrade failed. Please select the latest version of firmware to upgrade.)

Any idea on why my deco not getting latest patch, and based on my understanding my current version is release year 2022. Even i press update via web management and application, it says my system is up to date already.

Reason for upgrade is i saw in 1.1.4, there is feature "Support for setting Effective Time and Bandwidth Limit for guest network." which i needed actually, because current version no bandwidth control available