To proceed with the TP-Link AC750 set up wirelessly, you must remove any sort of cables that are connecting to the modem. Now, you should plug in the modem power adapter and then check the power light to make sure the modem is on. Now, you are expected to connect the Netgear AC750 R6020 router. Now, you must plug in the router power adapter and then make sure that the power light is on.
Read more
Connect your D-Link Wireless AC750 Router:
Unplug the power to your DSL or Cable modem.
Connect an Ethernet cable from the Internet port of the router to the Ethernet port on your DSL or Cable modem.
Connect another Ethernet cable from the Ethernet port on your computer to one of the LAN ports on the router.
Regards,
Willjoe