Motorola MB8600 Downstream Keeps Blinking Blue

@EG​ Hopefully this works...

That isn't a particularly bad event log. As I understand it, the Notice (6) level messages aren't a concern. The occasional MDD timeout (even though it's a Warning (5) and not Critical (3)) bugs me a bit. The MDD should be reliable and received about every 200 mSec. Some of those are getting dropped. Your downstream power levels are more concerning. If I recall correctly, those can range from -15 dBmV to +15 dBmV, but looking across all channels, the delta should be no more than 3 dBmV. Ignoring the OFDM PLC channel, which always seems to be at a higher power, yours varies by over 6 dBmV.  The lower-frequency channels are consistently higher than the upper-frequency channels. 

I have the MB8611, and my connection status looks like this:

Connection Status

System Up Time 3 days 07h:04m:29s         Network Access Allowed

Downstream Bonded Channels

Channel Lock Status Modulation Channel ID Freq. (MHz) Pwr (dBmV) SNR (dB) Corrected Uncorrected    1 Locked QAM256 2 475.8 7.3 42.2 0 0    2 Locked OFDM PLC 1 780.0 11.1 40.6 245245108 778    3 Locked QAM256 3 481.8 7.5 42.4 0 0    4 Locked QAM256 4 487.8 7.6 42.2 0 0    5 Locked QAM256 5 493.8 8.0 42.5 0 0    6 Locked QAM256 6 505.8 8.0 42.4 0 0    7 Locked QAM256 7 511.8 8.0 42.3 0 0    8 Locked QAM256 8 517.8 7.8 42.2 1 0    9 Locked QAM256 9 523.8 8.3 42.4 0 0    10 Locked QAM256 10 529.8 8.2 42.2 0 0    11 Locked QAM256 11 535.8 8.6 42.4 1 0    12 Locked QAM256 12 541.8 8.8 42.4 0 0    13 Locked QAM256 13 547.8 8.9 42.3 1 0    14 Locked QAM256 14 553.8 8.9 42.2 1 0    15 Locked QAM256 15 559.8 9.0 42.3 2 0    16 Locked QAM256 16 565.8 8.9 42.2 1 0    17 Locked QAM256 17 571.8 9.1 42.2 1 0    18 Locked QAM256 18 577.8 8.9 42.1 1 0    19 Locked QAM256 19 583.8 9.3 42.2 2 0    20 Locked QAM256 20 589.8 9.5 42.4 1 0    21 Locked QAM256 21 595.8 9.7 42.2 4 0    22 Locked QAM256 22 601.8 10.0 42.5 1 0    23 Locked QAM256 23 607.8 9.9 42.4 3 0    24 Locked QAM256 24 613.8 9.9 42.4 2 0    25 Locked QAM256 25 619.8 10.2 42.4 1 0    26 Locked QAM256 26 625.8 10.3 42.2 1 0    27 Locked QAM256 27 631.8 10.3 42.4 3 0    28 Locked QAM256 28 637.8 10.7 42.5 1 0    29 Locked QAM256 29 643.8 10.2 42.3 1 0    30 Locked QAM256 30 649.8 10.7 42.4 4 0    31 Locked QAM256 31 655.8 10.2 42.2 4 0    32 Locked QAM256 32 661.8 10.6 42.1 2 0

Upstream Bonded Channels

Channel Lock Status Channel Type Channel ID Symb. Rate (Ksym/sec) Freq. (MHz) Pwr (dBmV)    1 Locked SC-QAM 2 5120 16.4 50.0    2 Locked SC-QAM 3 5120 22.8 50.0    3 Locked SC-QAM 4 5120 29.2 50.0    4 Locked SC-QAM 9 5120 35.6 50.0    5 Locked SC-QAM 11 2560 40.4 50.0

However, what caught my eye was the mention of the downstream LED blinking blue. Mine was solid until today. It is also now blinking blue. I'm not having connection issues, though. At least, not yet. According to the MB8611 Quick Start guide, that means "Negotiating bonded channel(s)." I did a speed test, and it was what it should be.

Here's my connection now:

@NoGoodNamesLeft4Me​ What can I do to lower Downstream power levels?  Should I adjust my downstream frequency setting?

@Disgruntled_User 

FWIW. You have a condition going on that is called *reverse cable tilt*. This is where the downstream channel power levels at the lower frequencies are weaker/lower than they are at the higher frequency channels. This reverse power roll-off needs to be corrected. You should get the techs involved again until it gets fixed properly. Good luck !