
When purchasing a replacement cable modem, make sure the modem model and make are approved by your service department. It was the correct model and brand, but the BIOS was not recognized by Comcrap. At least the seller acknowledged my problem and refunded the money for the purchase.

RCA DCM425 Digital Cable Modem
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π Zoom 3090-00-00 V.92 / V.44 USB External Controllerless Fax Modem: High-Speed Connectivity and Easy Installation
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πΆ Ubee DDW365 Wireless DOCSIS 3.0 Cable Modem Gateway" - Enhanced for SEO: "Ubee DDW365 Wireless DOCSIS 3.0 Cable Modem Gateway - Advanced Connectivity Solution
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UGREEN USB 3.0 Ethernet Adapter Hub with RJ45: Fast Gigabit Ethernet Converter, 3 Ports USB 3.0 Hub Compatible for MacBook, iMac, Surface Pro, Chromebook, Laptop, PC
11 Review

π CERRXIAN RS232 to Ethernet Serial Device Server - TCP/IP Converter with 1Port DB9 RS232 Serial to Ethernet Connectivity
3 Review

π uni USB C Hub with Ethernet Adapter, 4K HDMI, Gigabit Ethernet, and 3 USB 3.0 Ports for MacBook Pro, iPad Pro, XPS
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π StarTech.com NETRS232 Serial to IP Ethernet Device Server - DIN Rail Mountable - Serial Device Server - Serial Over IP Device Server (Black)
4 Review