My Arris CM8200 modem's Online light has been contually flashing today. The Power, Upstream, Downstream lights are all green, I've reset the modem as well - changes nothing. This occured the morning after NBN scheduled maintenance in our area several hours before. Question: if the Arris modem is malfunctioning, is this NBN's responsibility to replace, and if so who do I contact?  ... View more