Prerequisites
You must have access to VMware vCenter.
You must have access to Windows Server where OneIQ Pulse is installed.
Overview
OneIQ Pulse will collect data only if the local time on the machine hosting it is synchronized with the time on discovered VMware endpoints. Otherwise, a "Clock skew is detected" error will be displayed during endpoint discovery:
Even if NTP is used, VMware ESXi™ hosts may not synchronize with the NTP server without appropriate patches/updates.
Troubleshooting
Use the VMware vSphere Client to determine the current time on VMware vCenter/ESXi Servers under the System Information section. To edit the Time Configuration of an ESXi Host in the VMware Host Client, see this VMware article.
Example
VMware vCenter/ESXi Server time is 6:30 UTC.
The OneIQ Pulse machine's local time is also 6:30, but the time zone is set to UTC+1.
In this situation, OneIQ Pulse would not be able to collect data from VMware vCenter/ESXi Server due to a time difference of one hour.
Resolution
Adjust the time on the OneIQ Pulse machine to match the time on the VMware vCenter/ESXi Server.