D-Link DIR-615 User Manual page 12

Section 2 - Installation
6. Disconnect the Ethernet cable from the router and reconnect your computer to your network.
7. Connect an Ethernet cable in one of the LAN ports of the router and connect it to your other router. Do not plug
anything into the WAN port of the D-Link router.
8.
and
D-Link DIR-615 User Manual
sections for more information on setting up your wireless network.
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