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Home > Success Center > Network Performance Monitor (NPM) > Error contacting poller

Error contacting poller



The following error appears when trying to add or assign nodes to another polling engine server:
The page at orionserver says:

Error contacting poller. An unsecured or incorrectly secured fault was received from the other party. See the inner FaultException for the fault code and detail.


On the Core.BusinessLayer.log, the following error is shown::

WARN  SolarWinds.Orion.Core.BusinessLayer.JobScheduler - Job Scheduler Exception:
System.ServiceModel.Security.MessageSecurityException: The security timestamp is invalid because its creation time ('2016-07-22T06:47:50.325Z') is in the future. Current time is '2016-07-22T06:41:30.664Z' and allowed clock skew is '00:05:00'.

Server stack trace: 
   at System.ServiceModel.Security.SecurityTimestamp.ValidateFreshness(TimeSpan timeToLive, TimeSpan allowedClockSkew)
   at System.ServiceModel.Security.SecurityTimestamp.ValidateRangeAndFreshness(TimeSpan timeToLive, TimeSpan allowedClockSkew)


Orion Core 2015.1.3 and later


The current date/timestamp is invalid as it is set to a later future date.


Make sure that all the Solarwinds Orion servers are synchronized to the same current time.


Last modified
18:49, 27 Jul 2016