Wireless has been operating correctly in the campus infrastructure. After the wireless controllers are upgraded from LWAPP to CAPWAP， access points no longer boot and operate normally. What is the most likely issue causing this problem？（）
- A、VLAN assignments
- B、DHCP option 43
- C、PoE
- D、ACL
- E、QoS
正确答案:D
答案解析:有
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