The fact that it works fine at time, but then the printer doesn't respond in other cases is very odd. It makes you think something might be changing with the connection. Are you by chance using any kind of a USB hub? Might also be worth checking hibernation/sleep settings or energy saving preferenc...
Thx for the quick reply. From the logs I attached here is the printer's FW SENT: M115 READ: CMD M115 Received. READ: Machine Type: dremel 3d idea builder READ: Machine Name: DREMEL READ: Firmware: v1.5 20180611 The attached logs implies nothing is coming back but I'm not sure about that. In my steps...
I've submitted this thru the Contacts link on Simply support page and posting here to see if anyone else has seen this. I am running your V5.1.2 product on Mac OS v12.7.6 using my Dremel 3D20 (see Verifying connection.txt). The first time the printer is added and I connect with the printer while it ...