Re-establish secure communication after upgrading devices.
Rekey each device.
On the Device Properties page, select the Connections tab.
Change the TCP Target Port to port 22.
Click the Key Management tab.
Click Key Device.
Type the current password or add new passwords.
Click Next.
Click Export Key on the Key Device wizard.
Rewrite any device settings, such as data sources, database servers, or VIPs, to the device to make sure that the correct settings are applied.
Roll out policy to all upgraded devices.
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