Time In Sync Status is False (DV Diagnostics for CIOC)

Hello,

I just wanted some help regarding the TimeInSync parameter on a CIOC level from DV Diagnostics. Few of our CIOCs are showing FALSE on the Time in sync status. I tried downloading changed setup data for the CIOC but it did not help. Our Master Time Server is Proplus and Back up Time Server is Historian Server. If someone has some same issue before and was able to fix it I appreciate the help, thank you.