Error C665 happens when your Thermomix's country selection does not match your Cookidoo account's country. When this happens your Cookidoo account cannot communicate with your Thermomix due to data privacy laws.
Our customer service team can help transfer your Cookidoo account to the correct region.
In order to process this request, please call our customer service team at 1-888-867-9375 or email them at email@example.com. Our customer service team will need to verify the email you used for your Cookidoo account and your current address to process this request.