HINT Control APP
Currently, the Arcadyan KVD21, Arcadyan TMOG4AR, Sagemcom Fast 5688W, Sercomm TMOG4SE, and Nokia 5G21 gateways are ed. The Askey TM-RTL0102 can't be controlled with this app.
NOTE: Don't disable the 2.4GHz and 5GHz radios in the "Wi-Fi" section unless you have a wired connection to your gateway. These will disable the Wi-Fi and prevent you connecting to the gateway wirelessly.
Check out the source code and releases for other platforms: https://github.com/zacharee/ArcadyanKVD21Control/.