The LTPA timeout value for forwarded credentials between servers parameter setting specifies how long an LTPA token is valid (in minutes). The token contains this expiration time so that any server that receives the token can verify that the token is valid before proceeding further.
When the defined amount of time has passed, all user tokens expire regardless of session activity. Consider increasing this value if one or both of the following conditions occur:
“org.omg.CORBA.NO_PERMISSION: Credentials have expired”
For instructions about adjusting the LTPA timeout value for forwarded credentials between servers parameter value, select the link that is associated with the installed version of WebSphere® Application Server.