High number of Uncorrected packets. Internet drops. Direct wired connection.

The signal stats are ok / in spec. Please post the modem's RF error log entries in their entirety (copy and paste all of the text) but redact the CM and the CMTS MAC addresses for your privacy or else the forum bot will not allow your post to be seen publically.

O/k even though the signal stats looked o/k at that snapshot in time, the error log entries and the bit errors confirm that something is going on. Perhaps there is noise ingress into the line(s) somewhere.

There are other signal stat figures that can't be read by the modem. They are the "Upstream Rx Power" (Upstream Receive Power Level), the "Upstream SNR Ch." (Upstream Signal To Noise Ratio), and the "Upstream ICFR" (In Channel Frequency Response). These are as equally important in diagnosing connectivity issues as are the modem's stats.

I'm going to escalate your issue to the Comcast corporate employees that are available to these boards.  They can check the CMTS (Cable Modem Termination System) for any real time degradation and / or error reports, see your node / cable plant and modem health, and see whether or not everything is in the green zone. They can also see a history plot for the modem and poll for those upstream receive signal stats.

You should get a reply here in your topic. Good luck !

Hmmm..... Must have slipped through the cracks. I'll re-escalate it.

Updated values after 7 days up time with no reset.

Startup Sequence

Startup Step Status Comment       Acquire Downstream Channel 549000000 Hz Locked       Upstream Connection OK Operational       Boot State OK Operational       Configuration File OK       Security Enabled BPI+

Connection Status

System Up Time 7 days 02h:55m:29s         Network Access Allowed

Downstream Bonded Channels

Channel Lock Status Modulation Channel ID Freq. (MHz) Pwr (dBmV) SNR (dB) Corrected Uncorrected    1 Locked QAM256 17 549.0 6.3 39.3 795 2555    2 Locked QAM256 1 447.0 5.3 39.8 1020 4063    3 Locked QAM256 2 453.0 5.7 39.8 1354 5479    4 Locked QAM256 3 459.0 5.5 39.7 1206 4895    5 Locked QAM256 4 465.0 6.0 39.8 1195 5034    6 Locked QAM256 5 471.0 6.1 39.6 1408 5423    7 Locked QAM256 6 477.0 6.4 39.8 1287 4717    8 Locked QAM256 7 483.0 6.3 39.7 1206 4904    9 Locked QAM256 8 489.0 5.6 39.5 1201 5229    10 Locked QAM256 9 495.0 5.7 39.5 1301 5036    11 Locked QAM256 10 507.0 5.8 39.5 1160 4568    12 Locked QAM256 11 513.0 6.0 39.5 1126 4506    13 Locked QAM256 12 519.0 5.6 39.4 1101 4493    14 Locked QAM256 13 525.0 5.9 39.4 818 2978    15 Locked QAM256 14 531.0 5.7 39.3 1114 4232    16 Locked QAM256 15 537.0 6.2 39.4 1068 4239    17 Locked QAM256 16 543.0 6.6 39.3 1086 4705    18 Locked QAM256 18 555.0 5.9 39.2 1057 4014    19 Locked QAM256 19 561.0 6.2 39.1 1000 3925    20 Locked QAM256 20 567.0 6.1 39.2 1037 4021    21 Locked QAM256 21 573.0 6.3 39.4 1035 3959    22 Locked QAM256 22 579.0 5.9 39.1 1027 3790    23 Locked QAM256 23 585.0 6.6 39.1 1059 3687    24 Locked QAM256 24 591.0 7.0 39.2 1028 3753    25 Locked QAM256 25 597.0 7.5 39.3 933 3272    26 Locked QAM256 26 603.0 7.9 39.3 966 3330    27 Locked QAM256 27 609.0 7.6 39.2 1090 3722    28 Locked QAM256 28 615.0 7.8 39.3 970 3395    29 Locked QAM256 29 621.0 7.6 39.3 989 3379    30 Locked QAM256 30 627.0 7.6 39.1 1032 3399    31 Locked QAM256 31 633.0 7.4 38.7 1137 3180    32 Locked QAM256 32 639.0 7.7 39.0 1503 4238    33 Locked OFDM PLC 159 768.0 8.0 38.6 288120332 2924

Upstream Bonded Channels

Channel Lock Status Channel Type Channel ID Symb. Rate (Ksym/sec) Freq. (MHz) Pwr (dBmV)    1 Locked SC-QAM 1 5120 35.6 36.3    2 Locked SC-QAM 2 5120 29.2 35.5    3 Locked SC-QAM 3 5120 22.8 35.0    4 Locked SC-QAM 4 5120 16.4 35.0    5 Locked SC-QAM 5 1280 39.6 35.5

No prob. It's not bothering me ! I'm not an employee so I have no idea what goes on internally with their company. All I can say is that this isn't typical and usually after a second escalation an employee responds here. I have one other method of escalation that I will try for you.

Tech came out today. 

Three issues were discovered.  

1) Comcast was not receiving any information as to the frequencies (on the tech's device status was orange, but should be green).  Solution - replacement of the line going from the pedestal to the house.

2) Upstream power was at the lower end of the acceptable values (33-34).  Although, might not have been an issue, the tech decided that a splitter was a good just in case solution.  So we added a splitter and thus increased the upstream power to be more in the middle of the acceptable ranges (37-38).  Downstream power still good.

3) Voltage spike in and around the modem. Solution - additional ground was placed going from the splitter to the ground on the breaker box.

Will monitor the status and the connection for a few days before coming to a conclusion.  

A few errors in the log are already present (30 min of online time).