Hi, Thanks for the reply. I can't see the answer on there. We have been using the RUT955 on POE LAN1 just fine. We then thought we would power it with the supplied power supply. The 955 rebooted and wouldn't power up correctly. The only light that came on was one of the LAN3 led faintly. Power it down unpluged the PSU waited a couple of minutes and used the POE amd it was fine. Just don't understand why the PSU wouldn't work.