CIFS Protocol Fails Intermittently

[Zadok]

Hi

So I just configured this New NetApp FAS2750 and everything seems fine, except the CIFS/Volume Share.

It works only when I restart the CIFS service on the storage, and then I am unable to access the Volumes after some hours.

It runs on ONTAP 9.9.

Can someone help me with what I should do to fix this, I have added the domain credentials and included the DNS.

[maffo]

are you using NTP to keep time in sync between the cluster and the domain controller?

if the time difference is higher than 5 minutes, authentication will fail

[Zadok]

The time is the same.

It's not even about authentication here per se.

One minute I am able to access the file share, ten minutes later I am unable to access the file share.

I have attached the error.

[paul_stejskal]

Any errors in the event log? Try running "set diag; event log show" and see if it logs anything. If not, a tcpdump may be needed. There are also some good suggestions on the articles on the KB site under this search string: https://kb.netapp.com/Special:Search?qid=&fpid=230&fpth=&query=cifs+share+not+accessible&type=wiki