Lulzbot Mini 1 can't connect


I just bought a Lulzbot Mini 1.0, used. It will not connect to any computer I plug it in to. All are running Windows 10. All drivers are installed and show up in Device manager. I have installed all software and rebooted each, and Cura still says no connection - after I click on “Connect.”

I have checked all 3 fuses, they are all good. There was a loose DC power wire, which I have put back. Still, in Cura Lulzbot Edition 3.6.29, I get “Can’t connect to printer.”

When I click on “Connect” under “Monitor” I can hear the Lulzbot fan shut down for a few seconds, then speed up, then return to normal speed as “Can’t connect to printer” comes back up.

Is there something I am missing?

Thank you.

I’ve seen that some Mini 1’s with very old firmware won’t connect in Cura if the baud rate is set to “Auto.” So try going to “Manage Printers” then “Machine Settings” and change the communication speed to 115200.