Nordic region page also seems to have its newest firmware downloads dated 2023 (V1), 2024 (V2) and 2025 (V3, V5), which may not be the most recent ones available.

MR600 manual: If you wish to block all internet browsing access, do not add any keyword to the Whitelist. Does "all internet browsing access" include every port between 1–65535 or just 80, 443 and...