http://support.microsoft.com/kb/2717295
Error: CSMSAMTDiscoveryTask::Execute, discovery to client_computer failed. General Worker Thread Pool: Error, Can not execute the task successfully. Remove it from task list.
Starting service 'ReportServer'Time out has expired and the operation has not been completed.
Thread name = SMS_SITE_SYSTEM_STATUS_SUMMARIZERExecutable = C:\Program Files\Microsoft Configuration Manager\bin\x64\smsexec.exeException = eeeeffff (EXCEPTION_SMS_FATAL_ERROR)
When the Administrator Console is first installed, a copy of the Adminconsole.msi file is cached in the %Temp% folder of the user who initiated the installation. If that MSI file is missing, the Configmgr2012adminui-rtm-kb2717295-i386.msp update file may not be applied. When this update is distributed by using Software Distribution, the installation may fail, and an exit code of 1603 is logged in the excecmgr.log file.To resolve this issue, reinstall the original release of the Administrator Console by using Consolesetup.exe, then apply this update.