Dropping connectivity using bkool smart pro with macbook

Hi. I have a macbook pro and a bkool smart pro trainer. I used this trainer for the past 2 years more or less and everything was fine until 3 month ago. I am constantly loosing connectivity during my sessions. The weird thing is that in workout mode it works fine unless I use ERG, this trainer since the beginning doesnt read the power well after 300w it feels to easy. But when using zwift just to take a normal ride the power drops every 2 min, it is impossible to ride now. It seems is some problem with the bluetooth or ant+ connectivity but I cant figure it out.
Someone has any ideia why this might be happen? The problem is from my mac or the trainer?
Thank you