Still can't connect x-carve with Easel

There is a version of Easel Local that tries to automatically detect which COM port your Arduino is attached to.

That version can cause connection problems. If your version of Easel Local is greater than 0.2.2 try loading version 0.2.2 to see if that fixes the problem.

Also, as a test, you could try to connect using the Serial Monitor in the Arduino IDE to see if you can connect that way.