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By default, each version will be retried up to 5 times if there are any errors. After 5 times, the update will be deemed a failure and it will give up.
A failure during Low Level Initialisation will send an email directly to the Wise Owl Helpdesk. This represents a very low level error; the Appliance likely requires repair or replacement. The Wise Owl update server is not contacted.
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A failure during the actual Update Process will contact the Wise Owl update server directly. Emails will be sent to the "fail safe" address and the user who initiated the update.
Obviously, if the Appliance is not able to contact an email server or the Internet, it will not be able to notify Wise Owl of any errors which occurred. You must be connected to the Internet to update your Wise Owl Appliance.