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I'm using an Arris SB8200. For the past week or so, the Internet cuts out for 10-15 seconds several times an hour. I've run a recurring ping and it shows it dropping on the first hop from my router. It's not a Wi-Fi issue--I'm on Ethernet--and it impacts multiple devices. I've power-cycled my cable modem, factory reset it, etc. but still have this issue.