Under some circumstances, the RoasTime 3 drivers may not properly install on Windows. If your roaster is showing disconnected even while plugged into the computer via USB, you may need to force the driver installation from within RoasTime 3.
Again, make sure your Bullet R1 is connected to the computer via USB before installing the drivers.
To install you only need to click Settings  and the “install drivers” link that pops up, as shown below. You can then follow the on-screen instructions. If you have any further problems, please contact firstname.lastname@example.org