We have been having major issues with restoring course in Moodle 2.5. backups are fine - no issue. But restoring some courses always result in a timed out. The backup file is extremely small (< 15 MB).
We are running Moodle 2.5 on MS IIS 7.5 with MS SQL 2008 backend. Performance is not an issue, we are way... under utilize the servers. So we really don't know what cause this. We have turned on debugging and there was no error. We also attempt to restore the backup file on another system and it exhibit the same behavior.