Problem: When starting the SAP Control Center X.Xservice, it takes a long time before failing, and the service manager displays a message that the service start-up has timed out.
The SCC_HOME\log\agent.log shows the failure message.
Explanation: This problem usually occurs when the SAP Control Center repository database log file is out of sync with the repository database. A related symptom is the message SQL Login Failure in the SAP Control Center repository log file.
SCC_HOME\bin\sa\bin_windows32\dbsrv11.exe -n scc_repository -o SCC_HOME\services\Repository\scc_repository.slg -f -m -qi -qw -sb 0 -gn 100 -gm 500 -zl -zp -x TCPIP{port=3638} SCC_HOME\services\Repository\scc_repository.db
Explanation: The process sccservice.exe was not stopped during previous stops of SAP Control Center (even though the Windows Service "SAP Control Center x.x.x" does not show that it is running).
Solution: Use Windows Task Manager to kill the process tree of sccservice.exe, then restart SAP Control Center.