For the last two weeks, service keeps going down intermittently. Modem is a motorola sb5100. Evidently, motorola's will reboot if the upstream power levels hit 58dBmV or higher. I was unaware how to monitor this until today and have lost connection a hand full of times. Since I've been monitoring it, connection hasn't been lost and it's spiked up to 55. Of course the isp says it's the modem, but I'm not convinced that's the case. Anyone else have any experience with this?