Can't connect my new X-Carve for Machine Set-up

[LarryM]

You could look into this to see if this is your issue:

Easel doesn't connect - other programs can

This problem has come up in multiple threads enough times that it needs its own thread. Inventables is working on a version of Easel Local that can auto-detect the COM port where your Arduino is installed. This is a work in progress, and doesn’t work for all situations, yet. Sometimes you can connect one time and then nothing else will connect after that. This is usually a situation where the COM port is left in an undetermined state which prevents its use until the COM port is released by a m…