[grace-baker Hexnode 28 January 2020 grace-baker Moderator]

Hey, Thanks for reaching out to us.

Please navigate to Android->Restrictions->Allow Network Settings.
Disable the option ‘Tethering’ to block the users from turning on tethering on their devices. This will disable the blue tooth and USB tethering along with the Portable Wi-Fi hotspot.
To disable the USB and bluetooth tethering alone, disable the ‘USB tethering’ and ‘Bluetooth tethering’ options.

Kindly use the help link for more info on restrictions on iOS devices.

Cheers!
Grace Baker
Hexnode MDM