Refer to the exhibit. A collaboration engineer adds a redundant NTP server to an existing Cisco Collaboration solution. On the Cisco UCM OS Administration page the new NTP server shows as "Not…

Restarting NTPD on the Cisco UCM server might address issues with the CUCM's NTP daemon, but it is less effective than a full re-add via CLI for resolving a specific server's 'Not Accessible' status.

The prompt implies the new NTP server is configured and running; if the NTP service was not started on the new server itself, the issue would be more general unreachability, not a specific CUCM 'Not Accessible' status after adding.

The 'reach' value is a dynamically calculated metric by the NTP daemon to assess peer health and is not a manually configurable parameter; attempting to set it would not resolve the 'Not Accessible' status.

If a newly added NTP server shows 'Not Accessible' in Cisco UCM OS Administration, it often indicates a deeper configuration or synchronization problem. Deleting the NTP server entry and then re-adding it through the Cisco UCM command-line interface (CLI) using `set ntp server` commands often forces a more robust re-initialization and synchronization, resolving the accessibility issue.