BKool trainer problems

Hi, I’ve been using the BKool pro 2 trainer for a little over a year now with Zwift and have had no problems. The last few days I got on the trainer, it worked for a few minutes and then stopped reading wattage. I replaced the battery on my garmin thinking that this might be the problem but it’s still happening. It may read wattage for a minute or 2 and then completely cuts out. Any thoughts?