Edimax Technology BR-6574n - Manual (Page 142)

If you want to rescan UPnP devices, click ‘Refresh’ button.
If you need to set the detailed information of UPnP devices, please click
‘Advanced’ button, and the following settings will appear:
You can click ‘?’ icon and a drop-down list will shown, then you can
select an icon for the network device you selected. For example, if the
network device you selected is a computer, you can use the person icon to
represent it.