Error: Unable to detect a matching network config

[Too large to fit in the margin]

In [20]: !/root/anaconda3/bin/python pybootd.py
12:11:48 PXE[daemons] INFO: pybootd-1.8.0

Error: Unable to detect a matching network config

[Too large to fit in the margin]

qgb <bound method BootpServer.check_acl of <class 'pybootd.pxed.BootpServer'>> OrderedDict([((224300372066304, 281474976710655), False), ((731571696726, 281474976710655), True), ((31239343964160, 281474959933440), True)]) mac b'\xcc\xd3\xe2\x1f\x18\x12' None
12:49:17 PXE[pxed] INFO: CC:D3:E2:1F:18:12 is not in ACL list


mac_str = {}
self.ippool = OrderedDict([((224300372066304, 281474976710655), False),
item = b'\xcc\xd3\xe2\x1f\x18\x12'

[Emmanuel Blot]

I read the traces but I can't find the description of the actual issue...