Why do I get an error when applying "Force Overwrite VLAN Setting" on the USG FLEX 100H

Zyxel_HsinBo

Issue:
When enabling Force Overwrite VLAN Setting and entering the Management VLAN in the USG FLEX 100H GUI (Wireless Access Point settings), an error appears after clicking Apply, even though the same configuration works normally through the CLI.

Explanation:
This behavior is a known issue in uOS firmware version 1.32.
The problem has already been addressed and resolved in later firmware releases (v1.35).

If you encounter this issue, please upgrade the USG FLEX 100H to the latest official uOS version. Once updated, the configuration will apply successfully through the GUI.