Symptom Description: When training indoors on a smart trainer, you may notice some discrepancies between your power meter and smart trainer. This can be caused by any number of things including your riding position, temperature and your mental approach.
If you see a difference of up to 30 watts of your FTP, please read through this article by Hunter Allen. In it, he goes over some key differences of training outdoors vs. indoors and solutions.
If you have read the article and/or you are seeing a difference greater than 30 watts, please go through the Quarq Power Meter Basic Troubleshooting Guide.
If the troubleshooting above does not resolve the issue, please contact Quarq Customer Service.