KB10108-"Server not responding" error message appears during the enterprise activation process
Check the BlackBerry Messaging Agent (MAGT) log files to troubleshoot the issue. The log files are usually located in the Blackberry Enterprise Server installation directory in <drive>:\Program files\Research In Motion\Blackberry Enterprise Server\logs\<YYYYMMDD>. Check the MAGT log file for the day on which the issue occurred with the enterprise activation process.
Search the MAGT log files using the user name of the BlackBerry smartphone user's Simple Mail Transfer Protocol (SMTP) email address.