ESP32 Ethernet Link (IP101GRI)

[ethernet_esp]

Hello Team,

i rebuilded the ESP32 Ethernet Development Board (https://docs.espressif.com/projects/esp ... t-kit.html#) but its nor working properly.
First of all, the ESP is turned on and is flashable via USB. I am using the example program and the ESP boots fine.
The problem is that a Ethernet connection is not getting recognized. I have also the development board here and it works. Does anyone have an idea about the solution?
I will add my schematics. I have already fixed the problem with the GPIO0 (its pulled-up now).
Serial output:
(446) esp_eth.netif.glue: ethernet attached to netif
(4448) ethernet-manager: Ethernet Started
------------
Thats where the program stucks.

[ESP_ondrej]

The first thing I noticed is you kept floating RESET_N input signal. You might have issues with IP101 start-up since it should be released from reset after some time when clock is stabilized. See IP101 datasheet section "3.2 IP101GR/GRI pin description":

25MHz clock (x1) must be active for a minimum of 10 clock cycles before the rising edge of RESET_N. Chip will be able to operate after 2.5ms delay of the rising edge of RESET_N.

and section "7.4.1 Reset, Pin Latched-in, Clock and Power Source" for timing diagram.