We recently started to receive error alerts from our NetApp monitoring services saying that our NetApp is not NTP synchronized with any peer, so it's time may be incorrect. It says:
NTP is running, but no peers have passed the selection process. The local time may be too far off; or the configured NTP peers may not be reachable.
I check the ntp.conf to ensure valid time servers are listed, I also turned ON/OFF "options timed.enable".
Next, I looked into this article:
https://kb.netapp.com/support/index?page=content&actp=LIST&id=S:1012660
After following all the instructions, I was able to see the error message that might be truly the root cause of the problem: I think it says the NTP server is reachable, but it was rejected by the following reason:
It says flash=400 not_proventic.
At this point I'm stuck and not sure how to proceed further. Any help would be greatly appreciated.
We are trying to sync with our domain controller which has the role PDC emulator.
I tried running the command ntpq -p <ip of NetApp management port>
And get results which indicate reach=377 meaning there are no communication problems, however it is getting rejected as an NTP peer.