I have an Arris Modem that goes through nearly the same routine daily. From about 9am to 7pm daily, the signal goes away or weakens. No phone or internet. Then it works in the evening until the next morning. When you go into the browser, the modem admin page shows the signal has a range not consistent with what normally works for the modem according to Arris. Not sure if it requires a tech visit, possibly something could be fixed remotely?
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