I am in the process of installing a 4402-12. It's being connected to a HP Procurve GB PoE switch. The Management and AP Manager are untagged. 2 VLANS were created 201 (SECURE) and 221 (GUEST). HP switch has VLAN 1 disabled with no native VLAN being used. Only VLAN currently being used on HP switch is 201. When I connect the management and both AP mgr ports (LAG) I have a HTTPS connection to the management interface and it can also be pinged. As soon as I tag or trunk the AP manager interfaces (or physically remove the AP manager cables) the management link drops and I no longer have any access to the 4402? Why?