I'm struggling getting a STM32F042G6 to enumerate as CDC device. I'm getting the Device Descriptor Request Failed in device manager. Did it enumerate right away with only CubeMX generated code for you? I'm running the mcu crystal-less, tried both with and without 1.5K pullup on D+ and 22R series termination resistors. just trying my luck here, thinking I'm about to start my own thread soon.