How to install TP-Link wireless router to work with a DSL Modem (PPPoE)
Identify your home's WiFi Router and Cable or DSL Modem — Insteon
Is a DSL port the same as a WAN port? - Quora
DSL-245GE D-Link VDSL2/ADSL2+ 11AC 1200Mbps router with 4 Gigabit LAN ports with 1 combo LAN/WAN, 4 x external 5dBi antenna, 1 x USB 3.0 port - City Com