Wireless APs cannot get address problem resolution

Network environment:

1. The core switch is the Huawei brand, on this basis, and made a second core. Both the Cisco AC2504 and Poe switches are connected on the secondary core, under the Poe switch, connected to the original VLAN 40 on the Cisco AP1401,AC, and the newly created vlan42.

WORKAROUND: 1. First look at the configuration on the AC, after viewing no errors, but on the AC ping VLAN 42 network management, how also ping does not pass, and Ping VLAN 40 network management, is also not through, but VLAN 40 is normal to the Internet, how is it? Do you want to not hit the trunk or create the corresponding VLAN?

2. Login to the core switch and check the configuration is not wrong,

3. After the exchange, the original AC was connected to the secondary core, and landed on the secondary core switch, view the interface information, Dis CU

After careful review, and the AC and Poe switch interface connected to the tag, look at the VLAN information, only the original VLAN 40, and no VLAN 42, VLAN 42 Plus, VLAN 42, tested, the terminal can obtain IP, and access to the Web. To resolve this issue.

Wireless APs cannot get address problem resolution