Since upgrading from Galaxy S5 mini I have two major problems with the bluetooth connection.
1) I cannot use bluetooth for audiobooks because the first part of every sentence is clipped, have to use cable instead.
2) When I get a call I could previuosly answer directly with the phone, or pick up my plantronics headset. Now with the S8 I have to disable the Bluetooth connection on the phone to be able to take the call if the headset is too far away to answer quickly.
I have read about problems seemingly originating with the use of Bluetooth ver 5 on the Galaxy S8. Since I dont know for sure this is the problem for me I thought perhaps someone on this forum might help. Waiting for a worldwide Samsung upgrade of the bluetooth version to fix this could take a very long time without actually helping, so ...