D-Link DIR-626L Manual page 22

Section 3 - Configuration
To use the mydlink service (mydlink.com or the mydlink Lite app), you
must have an account. Select if you do have a mydlink account or if you
need to create one. Click Next to continue.
If you do not want to register at this time, click Next.
If you clicked Yes, enter your mydlink account name (email address) and
password. Click Login to register your router.
If you clicked No, fill out the requested information and click Next to
create your mydlink account.
Once your account information is entered, click Login.
D-Link DIR-626L User Manual 17