W5500 Not Transmiting on TXN /TXP pins

Hi
We have a custon board based on W5500. The SPI communication is fine and we can send/recieve spi packets. Howeve, the W5500 is not sending any signal on TXN/TXP pins. Everything looks great.
I could someone give some tips on what could be the cause of these behavior? It seems the aanalog part of W5500 is dead.
BR
Gilberto

AVDD problem. PHY is down. Shortage between TX pins.