I have owned a Kickr Core for about two weeks now.
I am seriously tempted to return the Kickr and, obviously, cancel the Zwift membership.
The BT connection doesn’t work 90% of the time, and when it does, it takes 20/30 minutes of tribulation (turning MAC on/off, BT on/off, Kick on/off, MANY times). Right now, I have been trying for 40 minutes and still not working. It’s quite frustrating.
I do not have any other device connected, and no other app synced with the Kickr.
I don’t understand what makes it so hard to establish some Bluetooth protocol handshake… I have never had such issues with any other BT device in my life… Zwift app is really BAD.