I have 1602i access points with a 2500 controller and an SGE2000 switch. I can get the controller connected and see it but when I plug the access points into the switch I do not even get a link light. I am using PoE injectors. I can connect and get a link light on any other switch including both PoE and non-Poe switches both Dlink and HP. The SGE2000 is pretty much a basic setup, 1 vlan, all ports are set to access.