We run into a problem when AP 3700 is connected to an 802.3at PSE
that only supports physical event classification as compliant to 802.3at standard for PSE,
but does not support CDP/LLDP power negotiation.
AP 3700 (I believe the firmware version does not matter much) cannot get enough power after not receiving any CDP/LLDP power negotiation packet. (get no more than 15W power although PSE supports 30W.)
