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PaStansberry

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Arris SB8200 Firmware Update / Download Speed Issue

Hello - I activated a new SB8200 today with Cox.

In reviewing the firmware, it appears that the modem does not have the latest firmware update applied.  That said, I also understand that Cox controls which firmware is actually applied to the device once it is on their network.  So, I'm looking for the answer to a couple of quesitons:

  1. What the the latest approved firmware version for the Arris SB8200 modem on Cox's network?  Mine is running AB01.01.009.27_081619_183.0A.NSH
  2. If a more recent firmware has been approved, how long does my modem have to be online before it will pick up the latest firmware and apply it?

I bought this new modem (along with a brand new TP-Link AX6000 router) in an attempt to improve my download speed.  However, I'm finding that the speed is not improved any from the previous setup (which was the Cox-provided Panoramic WiFi modem).  I am a Gigablast customer and this modem is listed as "Gigablast compatible".  I'm getting around 200-300Mbps down on average.

In reviewing the modem's event log, I also notice several "SYNC Timing Synchronization failure - Loss of Sync" messages.  Not sure if that's relevant or not to this issue.

Date Time Event ID Event Level Description
09/08/2020 12:29 84000500 3 "SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=<REDACTED>;CMTS-MAC=<REDACTED>;CM-QOS=1.1;CM-VER=3.1;"
09/08/2020 12:17 67061600 6 "DS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2 3.;CM-MAC=<REDACTED>;CMTS-MAC=<REDACTED>;CM-QOS=1.1;CM-VER=3.1;"
09/08/2020 12:17 73040100 6 "TLV-11 - unrecognized OID;CM-MAC=<REDACTED>;CMTS-MAC=<REDACTED>;CM-QOS=1.1;CM-VER=3.1;"
09/08/2020 12:17 68000300 5 "DHCP WARNING - Non-critical field invalid in response ;CM-MAC=<REDACTED>;CMTS-MAC=<REDACTED>;CM-QOS=1.1;CM-VER=3.1;"
01/01/1970 00:01 2436694066 6 "Honoring MDD; IP provisioning mode = IPv4"
01/01/1970 00:01 82000200 3 "No Ranging Response received - T3 time-out;CM-MAC=<REDACTED>;CMTS-MAC=<REDACTED>;CM-QOS=1.1;CM-VER=3.1;"
01/01/1970 00:01 84000100 3 "SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=<REDACTED>;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;"
01/01/1970 00:00 84020200 5 "Lost MDD Timeout;CM-MAC=<REDACTED>;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;"
01/01/1970 00:00 84000100 3 "SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=<REDACTED>;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;"

I'm also not sure what normal signal levels are for the service/modem, so hard to know if these are within range or not:

Startup Procedure
Procedure Status Comment
Acquire Downstream Channel 789000000 Hz Locked
Connectivity State OK Operational
Boot State OK Operational
Configuration File OK
Security Enabled BPI+
DOCSIS Network Access Enabled Allowed
Downstream Bonded Channels
Channel ID Lock Status Modulation Frequency Power SNR/MER Corrected Uncorrectables
2 Locked QAM256 789000000 Hz 1.0 dBmV 41.0 dB 0 0
1 Locked QAM256 783000000 Hz 1.2 dBmV 41.3 dB 0 0
3 Locked QAM256 795000000 Hz 1.3 dBmV 41.2 dB 0 0
4 Locked QAM256 801000000 Hz 1.5 dBmV 41.3 dB 0 0
9 Locked QAM256 831000000 Hz -1.2 dBmV 40.1 dB 0 0
10 Locked QAM256 837000000 Hz -1.1 dBmV 40.0 dB 0 0
11 Locked QAM256 843000000 Hz -1.0 dBmV 40.1 dB 0 0
12 Locked QAM256 849000000 Hz -0.8 dBmV 40.3 dB 0 0
17 Locked QAM256 879000000 Hz -1.4 dBmV 40.0 dB 0 0
18 Locked QAM256 885000000 Hz -1.9 dBmV 39.8 dB 0 0
19 Locked QAM256 891000000 Hz -1.6 dBmV 40.0 dB 0 0
20 Locked QAM256 897000000 Hz -0.9 dBmV 40.4 dB 0 0
21 Locked QAM256 903000000 Hz -0.6 dBmV 40.5 dB 0 0
22 Locked QAM256 909000000 Hz -1.1 dBmV 40.4 dB 0 0
25 Locked QAM256 927000000 Hz -0.5 dBmV 40.8 dB 0 0
26 Locked QAM256 933000000 Hz -0.8 dBmV 40.8 dB 0 0
27 Locked QAM256 939000000 Hz -0.6 dBmV 41.0 dB 0 0
28 Locked QAM256 945000000 Hz -0.8 dBmV 40.9 dB 0 0
29 Locked QAM256 951000000 Hz -1.6 dBmV 40.6 dB 0 0
30 Locked QAM256 957000000 Hz -2.0 dBmV 40.5 dB 0 0
33 Locked QAM256 357000000 Hz 3.0 dBmV 41.4 dB 0 0
34 Locked QAM256 363000000 Hz 2.4 dBmV 41.5 dB 0 0
35 Locked QAM256 369000000 Hz 2.4 dBmV 41.6 dB 0 0
36 Locked QAM256 375000000 Hz 3.1 dBmV 41.7 dB 0 0
37 Locked QAM256 381000000 Hz 3.2 dBmV 41.9 dB 0 0
38 Locked QAM256 387000000 Hz 2.7 dBmV 41.7 dB 0 0
41 Locked QAM256 405000000 Hz 2.8 dBmV 41.7 dB 0 0
42 Locked QAM256 411000000 Hz 2.6 dBmV 41.7 dB 0 0
43 Locked QAM256 417000000 Hz 2.8 dBmV 41.9 dB 0 0
44 Locked QAM256 423000000 Hz 3.3 dBmV 42.0 dB 0 0
45 Locked QAM256 429000000 Hz 3.6 dBmV 42.1 dB 0 0
46 Locked QAM256 435000000 Hz 3.6 dBmV 42.1 dB 0 0
159 Locked Other 300000000 Hz 2.8 dBmV 41.5 dB 302893000 0
Upstream Bonded Channels
Channel Channel ID Lock Status US Channel Type Frequency Width Power
1 4 Locked SC-QAM Upstream 38600000 Hz 6400000 Hz 44.0 dBmV
2 1 Locked SC-QAM Upstream 19300000 Hz 6400000 Hz 43.0 dBmV
3 2 Locked SC-QAM Upstream 25800000 Hz 6400000 Hz 43.0 dBmV
4 3 Locked SC-QAM Upstream 32200000 Hz 6400000 Hz 44.0 dBmV

I realize that there's no guarantee as to speeds, but I've literally never gotten anywhere close to "Gigablast" speeds.  That said, I'd be happy to consistently get between 500-700 down.  Am I crazy to have those types of expectations considering what I pay for this service?

Thanks in advance for all the help!

V/R

Paul S
Edmond, OK

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