We have a 4 month old HP Procurve 3500yl 48port PoE switch. For the past week, every morning around 9am the devices connected using PoE (our phones, WAPs, and cameras) will lose their power and then reboot normally. Sometimes they will do it once, others they will do it 2 or 3 times in a row and then they are fine the rest of the day.
I have updated the firmware to the latest release for the switch and this has not solved the problem. I also removed the WAPs from the switch because they were drawing the most power. The total power being used is about one third of what is available for the switch.
The logs on the switch show no errors or PoE alarms. The only thing that does come up is the "loss of Link" message for the devices that lose power and in turn, network access.
Does anyone have any idea what may be a cause of this issue?