We have been using the RB2011 boards for some time now and have just recently experienced two units that will shut down when eth1 is plugged into a cisco poe switch. Works great when the poe is turned off on the switch port but is there any explanation as to why our past units are fine and only recently have gotten two that will not power when connected to cisco poe switch. We currently have 1 unit that is working great and 1 that will not power on the same cisco switch with switch ports setup identical.