System received expired SSO ticket

Hello All,

Portal version: NW CE 7.3 EHP1

I have a Web Dynpro Java application that calls RFC using Adaptive RFC model.

We are facing intermittent issue when were see below error and model execution fails: -

Caused by: RfcException: [null]

    message: System received an expired SSO ticket on AB1 mshost ab1.mysystem.com

    Return code: RFC_SYS_EXCEPTION(3)

    error group: 103

    key: RFC_ERROR_LOGON_FAILURE

I checked SAP Note 947376 and set login.ticket_lifetime and SessionExpirationPeriod both to 16hrs.

And also, in addition to this, I include below line after model execution so that it closes JCO connection: -

wdContext.currentZ_Model_InputElement().modelObject().modelInstance().disconnectIfAlive();

But still same error is occuring intermittently.

Also, looked at SAP Note 1130191, but it is not clear 'what' needs to be done as solution.

Any more ideas on this?

Thanks & Regards,

Amey Mogare