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.
Use the VMware vSphere Client to determine the current time on VMware vCenter/ESXi Servers under the System Information section:
VMware vCenter/ESXi Server time is 6:30 UTC.
OneIQ Pulse machine 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.
Adjust the time on the OneIQ Pulse machine to match time on the VMware vCenter/ESXi Server.