D-Link DSM-510 - MediaLounge High-Definition Media Player User Manual page 45

Section  - Configuration
Select to add a new device to your existing wireless network and click Next to
continue.
Click Next
The wizard provides two methods for setting up a wireless network. Select to use a
USB flash drive to save your wireless network settings and click Next to continue.
Note: Using a USB flash drive is recommended.
Click Next
D-Link DSM-510 User Manual 5