My old modem (PK5000) and new modem (C1000A w/ Updated Firmware) both reset daily around 5am. This started around the second or third of December 2014. This happened when I had either modem synced at my old speed 7Mb/s or 12Mb/s. Here are my speed tests for the last 2 years or so. When the radio station comes up from low power to high power in the morning, my modem logs huge errors and retrains. So the DSLAM sees this as my line being unstable and kicks me down to a lower speed although it could retrain at the full speed just by using different bit bins.
http://www.speedtest.net/results.php?sh=11a0bd812e85113c42ecd24d5bacb45b&ria=0
This all just started around the 2nd of Demember. Before then my connection was rock solid for over 2 years.
This could be a misconfiguration at the DSLAM since a power back off would make the interference seem stronger across all bands or the AM radio stations are coming up to full power in the morning.
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