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I am running 3 TAZ 5s with CURA 3.2.27 on Ubuntu 18.04. I just ran a CURA update and restart and now the printers are not connecting. I can go into the printer settings on CURA and see the three ports but none of those ports. When I try to connect in the monitor window, it walks through the baudrate autodetection but does not restart the printer's OS even though the CURA window indicates that it is connected. Any troubleshooting suggestions?
Maybe set the baudrate to 250000. Newer printer firmware has the baudrates hard-coded... so autonegotiation fails.