How to Correct AP Time Discrepancy on Cisco WLC using NTP
Question
You are on the U.S.
East Coast (EST time zone, UTC-5) and configure NTP on your Cisco WLC.
The Cisco WLC web GUI shows the correct time and date, but your APs are off by 5 hours.
Which statement is true?
Answers
Explanations
Click on the arrows to vote for the correct answer
A. B. C. D. E.A.
The correct answer is D. You need to enable time-zone synchronization between the APs and Cisco WLC.
Explanation:
NTP (Network Time Protocol) is used to synchronize time between network devices. When NTP is configured on the Cisco WLC (Wireless LAN Controller), it will synchronize its time with the NTP server. The APs (Access Points) connected to the WLC can also synchronize their time with the WLC, but the time-zone configuration is not synchronized by default. This means that the APs will display the correct time, but the time zone may be incorrect.
In this case, since the WLC is showing the correct time and date, it means that NTP is working properly on the WLC. The APs are off by 5 hours, which indicates that the time zone on the APs is not configured properly. To synchronize the time-zone configuration between the WLC and the APs, you need to enable time-zone synchronization between them.
Option A is incorrect because APs can be configured to display the local time zone instead of UTC.
Option B is incorrect because configuring the time zone on the APs alone does not synchronize the time-zone configuration with the WLC.
Option C is incorrect because NTP configuration is not required on the APs when the WLC is already configured with NTP.
Option E is incorrect because APs can support both SNTP (Simple Network Time Protocol) and NTP servers.
Therefore, the correct option is D. You need to enable time-zone synchronization between the APs and the Cisco WLC.
