random problems logging on Sharepoint 2010

Posted on 2014-01-22
Last Modified: 2014-02-07
I have ausers reporting random problems logging on sharepoint 2010.
I report below 2 entries on the event viewer of a successfull login and a failed one from the same user on the same machine .

I strongly think it's the authentication process different but I don't know how to fix it.
thank you
Question by:carlettus
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Accepted Solution

Will Szymkowski earned 500 total points
ID: 39800009
Are your DC's time insync? Also check to make sure that your sharepoint server also has correct time from the DC's.


Author Comment

ID: 39802484
I made a test running the following on each Domanin Controller and Share Point.
Time is fine and sync is working .

C:\Users\minestraadmin>w32tm /query /status
Leap Indicator: 0(no warning)
Stratum: 6 (secondary reference - syncd by (S)NTP)
Precision: -6 (15.625ms per tick)
Root Delay: 0.3914185s
Root Dispersion: 0.4218050s
ReferenceId: 0xAC130605 (source IP:
Last Successful Sync Time: 23/01/2014 03:06:54
Poll Interval: 15 (32768s)

Thank you

Author Comment

ID: 39841829
the problem was indeed the communication with domain controllers and the SharePoint .
the firewall configuration had been changed blocking ldap protocol.

thank you

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