Hello all,

I have designed a custom PCB using a ESP32-S3 module and the [W5500](https://www.lcsc.com/datasheet/C32843.pdf) for ethernet connection.

I am using a [RJ45](https://www.lcsc.com/datasheet/C91754.pd) that is built of PoE. I have used the following references below to come up with my design.

In my design I am not getting any communication to the internet or the ability to send packets. When the board is powered (Via PoE or USB) the green and yellow come on for about half a second and then the yellow stays on. I am able to connect to the W5500 successfully via SPI and do a register dump, get the MAC address I set to the chip and what the chip is. So I know the chip is woking. The layers are as followed and the board was ordered with an impedance of 100 ohms for those traces.

Layers

1. Signal
2. Ground
3. Power
4. Signal

Any other suggestions or ideas that I can try could be very helpful. Or maybe I am missing something. I have been staring at this board for a very long time. Thank you in advance.

Changes I made on the physical PCB not on the schematic based on information online.

* Pulled PINMODE0 up with 10k ohm resistor
* Pulled PINMODE1 up with 10k ohm resistor
* Pulled PINMODE2 up with 10k ohm resistor
* Pulled INT up with 10k ohm resistor
* Pulled RST up with 10k ohm resistor

References

[https://files.waveshare.com/wiki/ESP32-S3-ETH/ESP32-S3-ETH-Schematic.pdf](https://files.waveshare.com/wiki/ESP32-S3-ETH/ESP32-S3-ETH-Schematic.pdf)

[https://docs.wiznet.io/assets/files/w5500\_sch\_v110\_use\_mag\_-dfff8bbb103d13be4f25cd2b2f8b950d.pdf](https://docs.wiznet.io/assets/files/w5500_sch_v110_use_mag_-dfff8bbb103d13be4f25cd2b2f8b950d.pdf)

Issue with ESP32-S3 and W5500 Ethernet connection