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Tuesday, October 24th, 2023

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No DOCSIS 3.1 signal on Arris SB8200 - newly provisioned

I installed a new SB8200V3 modem in place of a Netgear DOCSIS 3.0 modem. My download speeds have now dropped to 300-320 Mbps instead of the 800 Mbps that I am paying for. The whole point of changing to a DOCSIS 3.1 modem was to use the plan bandwidth. Instead it got worse.

The receive light is GREEN and NOT BLUE indicating only DOCSIS 3.0 operation.

I see the following error in the event log for the modem.

23/10/2023 19:29:43
notice
GUI Login Status - Login Success from LAN interface; client ip=[edited];CM-MAC=N/A;CMTS-MAC=N/A;CM-QOS=1.1;CM-VER=3.1;
23/10/2023 18:59:53
notice
REGISTRATION COMPLETE - Waiting for Operational status;CM-MAC=N/A;CMTS-MAC=N/A;CM-QOS=1.1;CM-VER=3.1;
23/10/2023 18:59:45
critical
Config File Rejected due to Invalid or Unexpected TLV 11;CM-MAC=N/A;CMTS-MAC=N/A;CM-QOS=1.1;CM-VER=3.1;
23/10/2023 18:59:45
notice
TLV-11 - unrecognized OID;CM-MAC=<edited>;CMTS-MAC=N/A;CM-QOS=1.1;CM-VER=3.1;
23/10/2023 18:59:43
warning
MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1;CM-MAC=N/A;CMTS-MAC=N/A;CM-QOS=1.1;CM-VER=3.1;
23/10/2023 18:59:43
notice
CMSTATUS:DS_Diplexer_Mode_Change_Ignored:[TLV-84.3], [1002MHZ];CM-MAC=N/A;CMTS-MAC=N/A;CM-QOS=1.1;CM-VER=3.1;
23/10/2023 18:59:43
notice
CMSTATUS:DS_Diplexer_Mode_Change_Ignored:[TLV-84.2], [108MHZ];CM-MAC=N/A;CMTS-MAC=N/A;CM-QOS=1.1;CM-VER=3.1;
23/10/2023 18:59:43
notice
CMSTATUS:US_Diplexer_Mode_Change:[TLV-84.1], [5-42MHZ];CM-MAC=N/A;CMTS-MAC=N/A;CM-QOS=1.1;CM-VER=3.1;
31/12/1969 16:01:30
critical
No Ranging Response received - T3 time-out;CM-MAC=N/A;CMTS-MAC=N/A;CM-QOS=1.1;CM-VER=3.1;
31/12/1969 16:01:25
notice
CMSTATUS:US_Diplexer_Mode_Change:[TLV-9], [5-42MHZ];CM-MAC=N/A;CMTS-MAC=N/A;CM-QOS=1.1;CM-VER=3.1;
31/12/1969 16:01:25
notice
Honoring MDD; IP provisioning mode = IPv6;CM-MAC=N/A;CMTS-MAC=N/A;CM-QOS=1.1;CM-VER=3.1;
31/12/1969 16:01:21
notice
CMSTATUS:DS_Diplexer_Mode_Change:Init, [108-1002MHZ];CM-MAC=N/A;CMTS-MAC=N/A;CM-QOS=1.1;CM-VER=3.1;
31/12/1969 16:01:21
notice
CMSTATUS:US_Diplexer_Mode_Change:Init, [5-42MHZ];CM-MAC=<edited>;CMTS-MAC=N/A;CM-QOS=1.1;CM-VER=3.1;
23/10/2023 18:57:33
notice
Cable Modem Reboot due to reset button from GUI;CM-MAC=N/A;CMTS-MAC=N/A;CM-QOS=1.1;CM-VER=3.1;
23/10/2023 18:56:50
notice
GUI Login Status - Login Success from LAN interface; client ip=N/A;CM-MAC=N/A;CMTS-MAC=N/A;CM-QOS=1.1;CM-VER=3.1;
23/10/2023 17:22:33
notice
REGISTRATION COMPLETE - Waiting for Operational status;CM-MAC=N/A;CMTS-MAC=N/A;CM-QOS=1.1;CM-VER=3.1;
23/10/2023 17:22:25
critical
Config File Rejected due to Invalid or Unexpected TLV 11;CM-MAC=N/A;CMTS-MAC=N/A;CM-QOS=1.1;CM-VER=3.1;
23/10/2023 17:22:25
notice
TLV-11 - unrecognized OID;CM-MAC=<edited>;CMTS-MAC=N/A;CM-QOS=1.1;CM-VER=3.1;
23/10/2023 17:22:23
warning
MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1;CM-MAC=N/A;CMTS-MAC=N/A;CM-QOS=1.1;CM-VER=3.1;
23/10/2023 17:22:23
notice
CMSTATUS:DS_Diplexer_Mode_Change_Ignored:[TLV-84.3], [1002MHZ];CM-MAC=N/A;CMTS-MAC=N/A;CM-QOS=1.1;CM-VER=3.1;
23/10/2023 17:22:23
notice
CMSTATUS:DS_Diplexer_Mode_Change_Ignored:[TLV-84.2], [108MHZ];CM-MAC=N/A;CMTS-MAC=N/A;CM-QOS=1.1;CM-VER=3.1;
23/10/2023 17:22:23
notice
CMSTATUS:US_Diplexer_Mode_Change:[TLV-84.1], [5-42MHZ];CM-MAC=N/A;CMTS-MAC=N/A;CM-QOS=1.1;CM-VER=3.1;
31/12/1969 16:01:33
warning
RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=N/A;CMTS-MAC=N/A;CM-QOS=1.1;CM-VER=3.1;
31/12/1969 16:01:29
critical
No Ranging Response received - T3 time-out;CM-MAC=1N/A;CMTS-MAC=N/A;CM-QOS=1.1;CM-VER=3.1;
31/12/1969 16:01:24
notice
CMSTATUS:US_Diplexer_Mode_Change:[TLV-9], [5-42MHZ];CM-MAC=N/A;CMTS-MAC=N/A;CM-QOS=1.1;CM-VER=3.1;
31/12/1969 16:01:24
notice
Honoring MDD; IP provisioning mode = IPv6;CM-MAC=N/A;CMTS-MAC=N/A;CM-QOS=1.1;CM-VER=3.1;
31/12/1969 16:01:20
notice
CMSTATUS:DS_Diplexer_Mode_Change:Init, [108-1002MHZ];CM-MAC=N/A;CMTS-MAC=N/A;CM-QOS=1.1;CM-VER=3.1;
31/12/1969 16:01:20
notice
CMSTATUS:US_Diplexer_Mode_Change:Init, [5-42MHZ];CM-MAC=N/A;CMTS-MAC=N/A;CM-QOS=1.1;CM-VER=3.1;
23/10/2023 17:20:09
notice
Cable Modem Reboot from SNMP;CM-MAC=N/A;CMTS-MAC=N/A;CM-QOS=1.1;CM-VER=3.1;
23/10/2023 16:24:50
notice
REGISTRATION COMPLETE - Waiting for Operational status;CM-MAC=N/A;CMTS-MAC=N/A;CM-QOS=1.1;CM-VER=3.1;
23/10/2023 16:24:42
critical
Config File Rejected due to Invalid or Unexpected TLV 11;CM-MAC=N/A;CMTS-MAC=N/A;CM-QOS=1.1;CM-VER=3.1;
23/10/2023 16:24:42
notice
TLV-11 - unrecognized OID;CM-MAC=N/A;CMTS-MAC=N/A;CM-QOS=1.1;CM-VER=3.1;
23/10/2023 16:24:39
warning
MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1;CM-MAC=N/A;CMTS-MAC=N/A;CM-QOS=1.1;CM-VER=3.1;
23/10/2023 16:24:39
notice
CMSTATUS:DS_Diplexer_Mode_Change_Ignored:[TLV-84.3], [1002MHZ];CM-MAC=N/A;CMTS-MAC=N/A;CM-QOS=1.1;CM-VER=3.1;
23/10/2023 16:24:39
notice
CMSTATUS:DS_Diplexer_Mode_Change_Ignored:[TLV-84.2], [108MHZ];CM-MAC=N/A;CMTS-MAC=N/A;CM-QOS=1.1;CM-VER=3.1;
23/10/2023 16:24:39
notice
CMSTATUS:US_Diplexer_Mode_Change:[TLV-84.1], [5-42MHZ];CM-MAC=N/A;CMTS-MAC=N/A;CM-QOS=1.1;CM-VER=3.1;
31/12/1969 16:01:41
critical
No Ranging Response received - T3 time-out;CM-MAC=N/A;CMTS-MAC=N/A;CM-QOS=1.1;CM-VER=3.1;
31/12/1969 16:01:36
notice
CMSTATUS:US_Diplexer_Mode_Change:[TLV-9], [5-42MHZ];CM-MAC=N/A;CMTS-MAC=N/A;CM-QOS=1.1;CM-VER=3.1;
31/12/1969 16:01:36
notice
Honoring MDD; IP provisioning mode = IPv6;CM-MAC=N/A;CMTS-MAC=N/A;CM-QOS=1.1;CM-VER=3.1;
31/12/1969 16:01:24
notice
CMSTATUS:US_Diplexer_Mode_Change:[TLV-9], [5-42MHZ];CM-MAC=N/A;CMTS-MAC=N/A;CM-QOS=1.1;CM-VER=3.1;

Status looks good:

Startup Procedure
Procedure Status Comment
Acquire Downstream Channel 507000000 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
20 Locked 256QAM 507000000 Hz 3 dBmV 38 dB 0 0
17 Locked 256QAM 483000000 Hz 4 dBmV 40 dB 0 0
18 Locked 256QAM 489000000 Hz 4 dBmV 38 dB 10 0
19 Locked 256QAM 495000000 Hz 3 dBmV 38 dB 8 0
21 Locked 256QAM 513000000 Hz 3 dBmV 40 dB 0 0
22 Locked 256QAM 519000000 Hz 4 dBmV 38 dB 0 0
23 Locked 256QAM 525000000 Hz 4 dBmV 40 dB 0 0
24 Locked 256QAM 531000000 Hz 4 dBmV 40 dB 0 0
25 Locked 256QAM 543000000 Hz 5 dBmV 40 dB 8 0
26 Locked 256QAM 549000000 Hz 5 dBmV 40 dB 0 0
27 Locked 256QAM 555000000 Hz 6 dBmV 40 dB 0 0
28 Locked 256QAM 561000000 Hz 6 dBmV 40 dB 0 0
29 Locked 256QAM 567000000 Hz 7 dBmV 40 dB 0 0
30 Locked 256QAM 573000000 Hz 6 dBmV 40 dB 0 0
31 Locked 256QAM 579000000 Hz 6 dBmV 40 dB 0 0
32 Locked 256QAM 585000000 Hz 7 dBmV 40 dB 0 0
33 Locked 256QAM 591000000 Hz 6 dBmV 40 dB 0 0
34 Locked 256QAM 597000000 Hz 6 dBmV 40 dB 0 0
35 Locked 256QAM 603000000 Hz 5 dBmV 40 dB 0 0
36 Locked 256QAM 609000000 Hz 5 dBmV 40 dB 0 0
37 Locked 256QAM 615000000 Hz 5 dBmV 40 dB 2 0
38 Locked 256QAM 621000000 Hz 5 dBmV 40 dB 6 0
39 Locked 256QAM 627000000 Hz 4 dBmV 40 dB 3 0
40 Locked 256QAM 633000000 Hz 5 dBmV 40 dB 2 0
41 Locked 256QAM 639000000 Hz 5 dBmV 38 dB 0 0
42 Locked 256QAM 645000000 Hz 5 dBmV 40 dB 1 0
43 Locked 256QAM 651000000 Hz 5 dBmV 40 dB 0 0
44 Locked 256QAM 657000000 Hz 5 dBmV 40 dB 0 0
45 Locked 256QAM 663000000 Hz 6 dBmV 40 dB 0 0
46 Locked 256QAM 669000000 Hz 6 dBmV 40 dB 0 0
47 Locked 256QAM 675000000 Hz 6 dBmV 40 dB 0 0
48 Locked OFDM PLC 688000000 Hz 7 dBmV 42 dB 42243190 0


Upstream Bonded Channels
Channel ID Lock Status US Channel Type Frequency Width Power
7 Locked SC-QAM 16400000 Hz 6400000 48.0 dBmV
12 Locked SC-QAM 40400000 Hz 3200000 46.0 dBmV
10 Locked SC-QAM 35600000 Hz 6400000 46.0 dBmV
9 Locked SC-QAM 29200000 Hz 6400000 47.0 dBmV
8 Locked SC-QAM 22800000 Hz 6400000 47.0 dBmV
6 Locked SC-QAM 10400000 Hz 3200000 48.0 dBmV

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2 years ago

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