D-Link DIR-615 User Manual page 66

Section 7 - Changing the Computer Name and Joining a Workgroup
3. Click the Computer Name tab in the System Properties window
and enter a description of your computer in the textbox. When you
are finished, click the Change button.
4. Go to the Computer Name/Domain Changes window and
click the radio button next to the Workgroup you want to
join. When you are finished, click the OK button.
D-Link DIR-615 User Manual 63