HCX - Error updating Time Settings: "Error occurred during action set for system config NTP_SETTINGS. Error message: no server suitable for synchronization found"

Products

• VMware HCX
• VMware Cloud on AWS

Issue/Introduction

• Updating the Time Settings (NTP) using the appliance management interface at <https://hcx-ip-or-fqdn:9443>, displays the following error:
  

  Error occurred during action set for system config NTP_SETTINGS. Error message: no server suitable for synchronization found

  

Environment

HCX

Cause

When specifying an NTP server in the HCX appliance management interface, the manager performs ntpdate query in the backend to validate the time synchronization for the specified NTP server.

Below error is being displayed on HCX admin UI in the event of failed validations.

[admin@HCX-manager ~]$ ntpdate -q "###.###.###.###"
10 Dec 15:54:27 ntpdate[28872]: no server suitable for synchronization found

Note: If you have multiple NTP servers specified (using a comma) in the appliance-management UI, the same validation is being performed for all specified NTP servers. In such case, NTP update process is not going to succeed unless validation is successful for all servers.

Note: When modifying the NTP server details post deployment of HCX, the above validation is going to be performed for ANY NTP server specified in the UI.

Resolution

Verify NTP server works as expected prior to configuring NTP within the HCX manager, to avoid potential issues related to NTP sync.

Additional Information

Updating the Time Settings