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130mbps Max on a 800mbps plan
This has been going on for months and I'm finally trying to get to the bottom of the issue. I have the 800mbps plan and no matter what I do I can't get over the 120-130mbps speed range that is hardwired or on wifi. I have a SB8200 modem that seems to keep getting the "Started Unicast Maintenance Ranging - No Response received - T3 time-out" I'm out of ideas on what to try here. Any suggestions would be great. Here is part of the Log from before, during and after a reset of my modem. The 99% majority of the log before the reset was the T3 time out error. Let me know if there is any other info that would be helpful.
| Date Time | Event ID | Event Level | Description |
|---|---|---|---|
| 02/09/2023 13:05 | 67061600 | 6 | "DS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2 3.;CM-MAC=00:00:00:00:00:00;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;" |
| 01/01/1970 00:00 | 2436694066 | 6 | "Honoring MDD; IP provisioning mode = IPv6" |
| 01/01/1970 00:00 | 82000200 | 3 | "No Ranging Response received - T3 time-out;CM-MAC=00:00:00:00:00:00;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=00:00:00:00:00:00;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;" |
| 02/09/2023 13:02 | 2436694044 | 3 | "Resetting the cable modem due to docsDevResetNow" |
| 02/09/2023 10:32 | 82000200 | 3 | "No Ranging Response received - T3 time-out;CM-MAC=00:00:00:00:00:00;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;" |
| 02/09/2023 10:32 | 84000500 | 3 | "SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=00:00:00:00:00:00;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;" |
| 02/09/2023 10:32 | 84000100 | 3 | "SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=00:00:00:00:00:00;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;" |
| 02/09/2023 10:31 | 82000500 | 3 | "Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=00:00:00:00:00:00;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;" |
| 02/07/2023 00:27 | 82000500 | 3 | "Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=00:00:00:00:00:00;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;" |
| 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 |
| 5 | Locked | QAM256 | 507000000 Hz | 9.0 dBmV | 41.3 dB | 0 | 0 |
| 1 | Locked | QAM256 | 483000000 Hz | 8.9 dBmV | 41.1 dB | 0 | 0 |
| 2 | Locked | QAM256 | 489000000 Hz | 8.7 dBmV | 41.1 dB | 0 | 0 |
| 3 | Locked | QAM256 | 495000000 Hz | 9.0 dBmV | 41.2 dB | 0 | 0 |
| 4 | Locked | QAM256 | 501000000 Hz | 8.9 dBmV | 41.2 dB | 0 | 0 |
| 6 | Locked | QAM256 | 513000000 Hz | 8.0 dBmV | 41.0 dB | 0 | 0 |
| 7 | Locked | QAM256 | 519000000 Hz | 8.5 dBmV | 41.1 dB | 0 | 0 |
| 8 | Locked | QAM256 | 525000000 Hz | 8.3 dBmV | 41.1 dB | 0 | 0 |
| 9 | Locked | QAM256 | 531000000 Hz | 8.1 dBmV | 41.0 dB | 0 | 0 |
| 10 | Locked | QAM256 | 537000000 Hz | 8.5 dBmV | 41.0 dB | 0 | 0 |
| 11 | Locked | QAM256 | 543000000 Hz | 7.2 dBmV | 40.6 dB | 0 | 0 |
| 12 | Locked | QAM256 | 549000000 Hz | 7.9 dBmV | 40.9 dB | 0 | 0 |
| 13 | Locked | QAM256 | 555000000 Hz | 7.4 dBmV | 40.6 dB | 0 | 0 |
| 14 | Locked | QAM256 | 561000000 Hz | 6.9 dBmV | 40.4 dB | 0 | 0 |
| 15 | Locked | QAM256 | 567000000 Hz | 7.3 dBmV | 40.6 dB | 0 | 0 |
| 16 | Locked | QAM256 | 573000000 Hz | 7.3 dBmV | 40.5 dB | 0 | 0 |
| 17 | Locked | QAM256 | 579000000 Hz | 7.0 dBmV | 40.4 dB | 0 | 0 |
| 18 | Locked | QAM256 | 585000000 Hz | 6.5 dBmV | 40.2 dB | 0 | 0 |
| 19 | Locked | QAM256 | 591000000 Hz | 6.4 dBmV | 40.0 dB | 0 | 0 |
| 32 | Locked | QAM256 | 459000000 Hz | 9.2 dBmV | 41.5 dB | 0 | 0 |
| 34 | Locked | QAM256 | 465000000 Hz | 9.9 dBmV | 41.6 dB | 0 | 0 |
| 35 | Locked | QAM256 | 471000000 Hz | 8.9 dBmV | 41.2 dB | 0 | 0 |
| 36 | Locked | QAM256 | 477000000 Hz | 9.2 dBmV | 41.2 dB | 0 | 0 |
| 37 | Locked | Other | 690000000 Hz | 5.5 dBmV | 37.5 dB | 208994731 | 0 |
| 38 | Not Locked | QAM256 | 0 Hz | 0.0 dBmV | 41.8 dB | 0 | 0 |
| 39 | Locked | QAM256 | 435000000 Hz | 9.6 dBmV | 41.5 dB | 0 | 0 |
| 40 | Locked | QAM256 | 441000000 Hz | 9.0 dBmV | 41.7 dB | 0 | 0 |
| 41 | Locked | QAM256 | 447000000 Hz | 9.7 dBmV | 41.5 dB | 0 | 0 |
| 42 | Locked | QAM256 | 453000000 Hz | 9.3 dBmV | 41.8 dB | 0 | 0 |
| 43 | Locked | QAM256 | 405000000 Hz | 9.7 dBmV | 41.8 dB | 0 | 0 |
| 44 | Locked | QAM256 | 411000000 Hz | 9.7 dBmV | 41.7 dB | 0 | 0 |
| 45 | Locked | QAM256 | 417000000 Hz | 9.6 dBmV | 41.6 dB | 0 | 0 |
| Upstream Bonded Channels | ||||||
|---|---|---|---|---|---|---|
| Channel | Channel ID | Lock Status | US Channel Type | Frequency | Width | Power |
| 1 | 5 | Locked | SC-QAM Upstream | 35600000 Hz | 6400000 Hz | 34.0 dBmV |
| 2 | 6 | Locked | SC-QAM Upstream | 29200000 Hz | 6400000 Hz | 34.0 dBmV |
| 3 | 7 | Locked | SC-QAM Upstream | 22800000 Hz | 6400000 Hz | 33.0 dBmV |
| 4 | 8 | Locked | SC-QAM Upstream | 16400000 Hz | 6400000 Hz | 33.0 dBmV |
| 5 | 10 | Locked | SC-QAM Upstream | 39600000 Hz | 1600000 Hz | 34.0 dBmV |
Current System Time: Thu Feb 9 13:36:59 2023
CCShaina
Problem Solver
•
393 Messages
2 years ago
Hello there @msimsi10 and thank you for bringing this concern regarding the speeds of your current internet plan to our attention here at the Xfinity Community Forums. I appreciate your providing information on the expected speeds against the speeds you are seeing both wired and wirelessly and additional details on your modem model to start. Just to make sure we are respecting your time and not being redundant with any questions we may have, may I ask what troubleshooting steps you have taken so far with the issue? Such as resets to both the modem and router, attempting tests on different devices with a hardwired ethernet connection, or attempting a test with an ethernet cable straight to the modem instead of attached through the router?
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