After the Admin UI starts up, there is nothing in the server.log
2017-09-08 10:51:54,560 WARN [ims.default] (MSC service thread 1-3) * Startup Step 26 : Attempting to start SchedulerService
2017-09-08 10:51:55,069 WARN [ims.default] (MSC service thread 1-3) * Startup Step 27 : Attempting to start environments
2017-09-08 10:51:55,165 WARN [ims.tmt.EnvironmentService] (MSC service thread 1-3) * Starting environment: CA Single Sign-On
2017-09-08 10:51:55,794 WARN [ims.tmt.WorkPointScriptsImportPlugin] (MSC service thread 1-3) WF is not enabled for environment: CA Single Sign-On
2017-09-08 10:51:55,939 WARN [ims.tmt.EnvironmentService] (MSC service thread 1-3) * Started environment: CA Single Sign-On
2017-09-08 10:51:56,088 WARN [ims.default] (MSC service thread 1-3) ** FIPS mode enabled : false
2017-09-08 10:51:56,091 WARN [ims.default] (MSC service thread 1-3) * Startup Step 28 : Attempting to recover unprocessed events and runtime status details
2017-09-08 10:51:56,092 WARN [ims.default] (MSC service thread 1-3) * Startup Step 29 : Attempting to start ApplicationContextInitializer plug-ins
2017-09-08 10:51:56,092 WARN [ims.default] (MSC service thread 1-3) ---- CA IAM FW Startup Sequence Complete. ----
2017-09-08 10:51:59,614 WARN [ims.jdbc.JDBCManagedObjectProvider] (Thread-114) Finished pre-population of cache for 26 object types
Error I am seeing on the screen is "Username and password do not match".
But I am sure that this user is valid user and I am using correct credentials. With this user I can access emails and desktop.