D-Link AC750 User Manual page 39

Section 3 - Configuration
If you selected DHCP Connection (Dynamic IP Address) you can
click on Clone Your PC's MAC Address to copy your computer's
MAC address to your router. Click Next to continue.
If you selected PPPoE, enter your PPPoE User Name and Password.
Click Next to continue.
Note: Make sure to remove your PPPoE software from your computer.
The software is no longer needed and will not work through a router.
D-Link DIR-818LW User Manual 34