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Amazon.com: D-Link DSL-2320B ADSL2/2+ USB Ethernet Modem : Electronics
NETGEAR DOCSIS 3.1 Multi-Gig Cable Modem with 4 Ethernet Ports. Max download speeds of 6.0 Gbps, For XFINITY by Comcast, Spectrum, and Cox (CM1200) - Newegg.com
Modem vs Router: What's the Difference?
An Internet or LAN port isn't working correctly on my router. How do I perform a loopback test to check the port? - NETGEAR Support