D-Link DIR-451 Quick Install Manual page 6

Select the ISP Card from the drop-down list and then click Username /
Password Connection (WWAN). Click Next to continue.
Click Next
Enter your WWAN user name, password, and server information. If you do
not have this information, please contact your ISP.
Click Next
Click Connect to save your settings. Once the router is finished rebooting,
click Continue. Please allow 1-2 minutes to connect.
Click Connect
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