I don't use Coax/HPNA...I'm Ethernet throughout.
As an update, I used the TS&R tool last night with the intent of calling AT&T afterwards to report the problem...I just wanted to make sure I had walked through the steps they would have me do before I called. The TS&R tool had me restart the modem, and since it's come back up, the high FEC rate has gone down drastically. Since the restart last night, I've had 16,653 uncorrected blocks in the last 11 hours.
My hourly rates:
$35 per hour.
$45 per hour if you want to watch.
$55 per hour if you want to help.
$100 per hour if you already tried to fix it.