Yes, Ethernet works with the 100 Ohm resistor. The resistor serves two purposes: to dampen overshoot/undershoot of the clock; and to prevent oscillator output from being overloaded when ESP IO0 is pulled to ground during fw download (in the case of my current circuit). It seems that I've to control ...

I only saw this documentation ( https://docs.espressif.com/projects/esp-idf/en/latest/esp32/api-reference/network/esp_eth.html ) after the hardware has been produced. The device is powered on and off 27000 times under room temperature. It boots up consistently in SPI boot mode. Is it safe to leave t...