NTP client not working with chrony

[AloisHofstaetter]

Hi,

from my point of view, the Wiznet5k NTP Client is not working for chrony. (And probably ntpd)
I guess it has to do with:
self._pkt_buf_ = bytearray([0x23] + [0x00] * 55)
Why is the length of the request expanded to 56 bytes?
I think the request should have a length of 48 bytes.
If i change it to:
self._pkt_buf_ = bytearray([0x23] + [0x00] * 47)
In fact, it works then.

For example:
https://github.com/adafruit/Adafruit_CircuitPython_NTP/blob/main/adafruit_ntp.py
also uses self._packet = bytearray(48)

BR