wireless clients not getting correct dhcp addresses

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http://serverfault.com – I apologise first if this is a stupid problem. I'm new to Cisco networking. I need some help with an existing configuration done by my vendor. Environment: 1. Core switch - Catalyst 6509e vlans configured: a. vlan 50 (wired clients) 10.0.50.x/24 interface IP b. vlan 70 (wireless clients) 10.0.70.x/24 interface IP c. vlan 192 (guest clients) 192.168.1.x/24 interface IP d. trunk port for WLC native vlan 70 allowed vlan 50, 70, 192 2. Cisco 4402 WLC in ()