CrashPlan PRO network address information may need to be re-configured for your slave server, as the 11.05.2009 upgrade may have removed this information.
If you do not perform these steps after the upgrade, your PRO Clients will not be able to communicate with the slave server.
After upgrading your PRO Servers to 11.5.2009 you will need to:
Setting up a secondary network address is optional.
The initial version of the upgrade deleted this information; we posted a fix the day of the release.
Consultants with a lot of slaves per master:
Clients will not upgrade until the master upgrades. This means that for this release (11.5.2009), backups to a slave will be disrupted until both the slave and the master are upgraded. This is true whether you upgrade the slave first or the master first.