|Updating computers / Configuring the updating policy|
By default, computers update from a single primary source UNC share, \\<ComputerName>\SophosUpdate, where <ComputerName> is the name of the Update Manager’s computer. You can also specify an alternative secondary source for updates, enable location roaming, and enable bandwidth throttling.
If endpoint computers cannot contact their primary source, they attempt to update from their secondary source (if one has been specified). We recommend that you always specify a secondary source.