Samsung S7+ Ant+ Dongle

Hi all,
Apologies if this has been covered a million times before, but could see anything after a quick search

Has anyone had much experience using an ANT+ dongle with the Samsung S7+? I can find the Kickr and HR sensor within the pairing screen, but they drop out almost immediately… Am I doing something wrong? Everything connects fine using BT, but would like to have Trainerroad running alongside Zwift.

Thanks
Jamie

Same Problem with Samsung S6 lite