Juniper Networks, Inc. ex4300-24p need to run software kernel JUNOS 17.3R3-S1.5, Build date: 2018-08-31 or later.
There is a known problem in earlier releases where lldp negotiated power are 19.5w but the lldp allocated power varies between 10.5 and 11.7 watts which may cause AP41’s to reboot unexpectedly.