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Amazon.com: ARRIS Surfboard Docsis 8X4 Cable Modem / Telephone Certified for XFINITY - Download Speed: 343 Mbps (TM822R) : Electronics
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How to Apply a Firewall IP Client Filter on the ARRIS Wireless Router (Brighthouse / Spectrum) - YouTube
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ARRIS SURFboard 16x4 Cable Modem / AC1600 Dual-Band WiFi Router. Approved for XFINITY Comcast, Cox, Charter and most other Cable Internet providers for plans up to 300 Mbps. - Walmart.com
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