This is an indicator of one of several possible causes.
The "DDS Enabled" function is not checked. This is found in the printer setup area on the web interface for the controller. Different versions of controller firmware will have slightly different look and arrangement from one another, but look for the DDS Enabled check box. If it is unchecked, check the box, then select "Update Printer".
There are two different models of scanner that were sold with the 8830. The older 7356 scanner will automatically be recognized by the 8830, and enable the Scan-to-net feature. However, if the newer Synergix scanner is installed, the controller will need the Scan-to-net feature installed on the controller. If you look at the web interface in the features section, you will see if this feature is installed and enabled.
Try looking at the section which shows the features. It should show a line Scan-to-net feature. You should see the feature present and enabled.
If this is not the case, it may be that the feature key will have to be reinstalled. It is unusual for this to happen on an HFT controller. On possibility is the battery on the controller main board is bad. When the battery fails, the controller can loose the feature key information.