Last week I tried to connect my Shapeoko Pro and it said no connection, which was strange, because I was using it the night before. After contacting the support team, and trying various attempts, we found that my blue tooth speakers in my wood shop may have been the culprit. The support team sent me a new version for me to download. Once downloaded, the CNC connected, and it has worked ever since. Just wanted to give others a heads up if this were to happen to them.
About a month or so ago there was rash of people with blue tooth being their problem. Between C3D updates and some Windows updates you can run both blue tooth and CM.
There are countless complications with Windows and driver interactions. When Windows (MS) makes an update to fix something you take two steps forward and at least if not two steps backward. They fix one thing and break several others.