Refer to the exhibit. Which configuration must be addresses to correct this issue?

The correct answer is C. Network Time Protocol. AP is not joining because time is wrong on the WLC – correct config of NTP (or setting the correct date/time on the controller manually) would fix the issue. See here for explanation, look for error “CERTIFICATE_INVALID_NOT_YET_VALID”…

Troubleshooting Wireless Infrastructure

Question

Exhibit

Options

Aself-signed certificate
BDHCP Option 43
CNetwork Time Protocol
DAP authorization list

How the community answered

(41 responses)

A
2% (1)
B
2% (1)
C
95% (39)

Explanation

AP is not joining because time is wrong on the WLC – correct config of NTP (or setting the correct date/time on the controller manually) would fix the issue. See here for explanation, look for error “CERTIFICATE_INVALID_NOT_YET_VALID”: https://community.cisco.com/t5/wireless-and-mobility/ap-can-t-join-dtls-connection-closed-by- controller/td-p/1871401

Topics

#AP joining#WLC configuration#NTP#DTLS handshake

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