BackupPC will not start a backup if it does not receive a ping reply from a client. Here is how to backup a host when ping is blocked.

In the BackupPC webinterface, click the client host name, Edit Config, go to the Backup Settings and change the setting PingCmd ($pingPath -c 1 $host by default) to


Don’t forget to check override and click the Save button to apply the change.

BackupPC settings