Wiznet5K with Particle Ethernet Featherwing

I am using a repurposed particle xenon board with circuitpython with a particle ethernet featherwing. I have the same issue as this - the ethernet connection works with a fixed IP but fails with dhcp. Shows an error:

* socket_available called on socket 4, protocol 2
* socket_available called on socket 4, protocol 2
* socket_available called on socket 4, protocol 2
* socket_available called on socket 4, protocol 2
* socket_available called on socket 4, protocol 2
* socket_available called on socket 4, protocol 2
*** Closing socket #4
Traceback (most recent call last):
  File "code.py", line 108, in <module>
  File "/lib/adafruit_wiznet5k/adafruit_wiznet5k.py", line 230, in __init__
RuntimeError: Failed to configure DHCP Server!

Code done running.

Here is my circuitpython code:

import board
import busio
import digitalio
import adafruit_requests as requests
from adafruit_wiznet5k.adafruit_wiznet5k import WIZNET5K
import adafruit_wiznet5k.adafruit_wiznet5k_socket as socket

print("Wiznet5k WebClient Test")

TEXT_URL = "http://wifitest.adafruit.com/testwifi/index.html"
JSON_URL = "http://api.coindesk.com/v1/bpi/currentprice/USD.json"

def get_mac(i2c_obj):
    "Read MAC from 24AA02E48 chip and return it"
    mac_addr = bytearray(6)
    while not i2c_obj.try_lock():
        pass
    i2c_obj.writeto(0x50, bytearray((0xFA,)))
    i2c_obj.readfrom_into(0x50, mac_addr, start=0, end=6)
    i2c_obj.unlock()
    return mac_addr

# Initialize SPI bus
spi_bus = busio.SPI(board.SCK, MOSI=board.MOSI, MISO=board.MISO)

# Chip Select for Particle Ethernet FeatherWing
cs = digitalio.DigitalInOut(board.D5)

try:
    # Initialize the I2C bus to read the MAC
    i2c = busio.I2C(board.SCL, board.SDA)
    # Read the MAC from the 24AA02E48 chip
    mac = get_mac(i2c)
except (RuntimeError, OSError):
    # Hard coded MAC if there is no 24AA02E48
    mac = b"\xFE\xED\xDE\xAD\xBE\xEF"

# Initialize Ethernet interface with DHCP
eth = WIZNET5K(spi_bus, cs, mac=mac, is_dhcp=True, debug=True)

print(eth.detect_w5500())
print(eth.link_status)

# Initialize a requests object with a socket and ethernet interface
requests.set_socket(socket, eth)
print("Chip Version:", eth.chip)
print("MAC Address:", [hex(i) for i in eth.mac_address])
print("My IP address is:", eth.pretty_ip(eth.ip_address))
print(
    "IP lookup adafruit.com: %s" %eth.pretty_ip(eth.get_host_by_name("adafruit.com"))
    ) # type: ignore

#eth._debug = True
print("Fetching text from", TEXT_URL)
r = requests.get(TEXT_URL)
print('-'*40)
print(r.text)
print('-'*40)
r.close()

print()
print("Fetching json from", JSON_URL)
r = requests.get(JSON_URL)
print('-'*40)
print(r.json())
print('-'*40)
r.close()

print("Done!")

adafruit / Adafruit_CircuitPython_Wiznet5k

Wiznet5K with Particle Ethernet Featherwing #127