I too cannot get the connection to work between router and cable modem. If you give a look to Lab instructions, on images on page 5 upper rightthe screenshot shows that the device is a WRTN router. Remember to mark the correct answers as solved, because that helps other users with similar doubts. In the first drop down box choose Coaxial and in the second drop down box choose Ethernet then click the Add button to add these as the From Port and To Port as shown in the figure.
First at all, I am not sure if this location is the best for my question, so sorry if it is not here.
