I have an issue on one of our PBX's where SP5 update will not install. The schdule backup also fails with the following error... 3CX Phone System tried to backup but failed due to the following reason(s): System.AggregateException: One or more errors occurred. ---> System.Threading.Tasks.TaskCanceledException: A task was canceled. --- End of inner exception stack trace --- at System.Threading.Tasks.Task`1.GetResultCore(Boolean waitCompletionNotification) at Google.Apis.Upload.ResumableUpload`1.Upload() at GoogleDriveImpl.GdFile.Close() at System.IO.Stream.Close() at _3cxBackupRestoreImpl.BackupRestoreUtils.Backup(IFilesystem filesystem, String instanceId, String cfgPath, String dbConnectionString, BackupConfig options, String fullpathFilename, Boolean sendEmail) at BackupRestoreSchedule.BackupJob.Execute(IJobExecutionContext context) ---> (Inner Exception #0) System.Threading.Tasks.TaskCanceledException: A task was canceled.<--- After restarting the PC an error emal occurs which syas that the update failed. Anyone any ideas?