There may be occasions where WildFire was enabled on the Palo Alto Networks firewall, but is no longer in use. After the WildFire subscription ends, the firewall still to attempts to upgrade the WildFire package. From the firewall's perspective, the WildFire license is no longer valid. However, it still attempts to obtain a new package. This is evident in the system log entries outlined below:
4/30/2014 3:14:00 PM Failed to upgrade Wildfire package to version <unknown version> 4/30/2014 3:14:00 PM Wildfire: No update is applied. No valid Wildfire license.
The WildFire update schedule can be disabled from the CLI. Run the following commands to disable the update schedule, and thereby avoiding the system log entries being written:
> configure # delete deviceconfig system update-schedule wildfire # commit
Note: The WildFire update schedule is not accessible through the WebUI.