Constant Outages T3 & T4 Errors and Command Power Exceeding 6db.

Hello,

We've been experiencing terrible internet connectivity over the past month or so...  Lately the internet is just plain out (or only on for 5 minutes at a time before resetting itself) from around 12pm-5pm and then experiencing a lot of random disconnects throughout the night and morning.

We've been dealing with customer support quite a bit and the experience has been maddening at best.  After dealing with them every day for a week (and getting nothing more than suggesting that we Power Cycle), I started using the chat help feature instead of the telephone, so that I could quote modem logs to them.  This got them to transfer me to a tier 2 technician... Who told me power cycle.  -.-

 After I told him that has been done, he said a technician would need to come to our house, I said that's fine and waited for my appointment.  On the day of our appointment, we received an email saying that the Appointment has been canceled, and when I checked my modem logs, I saw that they sent an online modem reset--something I had already done myself multiple times, and since the internet was working at that moment, proceeded to cancel our tech visit thinking job well done.

It's been five days since then, and the problems consist...  T3 errors all day long, our downstream channel power is constantly way out of normal range (sometimes varying by up to 7 dBmV!), and the uncorrectables continue to outweigh the corrected on most of the channels.

Here's a chunk of the recent modem log for reference: