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Forum Discussion
CM1000 RNG-RSP Issues
Since the new firmware update of V3.01.02 that was pushed out to Comcast I have been receiving "RNG-RSP CCAP Commanded Power in Excess of 6db Below the Value Correstponding to the Top of the DRW" err...
some of your downstreams are a little high they should be -7 to +7 dBmV. for the best connection.
DarrneM
I just started receiving the same errors and issues, reboots and disconnects multiple times a day. Just started yesterday.. real bummer :( Otherwise I've really enjoyed the modem. Here are some of my stats if it will help.. I've posted on Xfinity as well, waiting for some feedback.
2017-12-23, 08:40:56 | Warning (5) | REG-RSP-MP Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=xx:xx:xx:xx:xx:10;CMTS-MAC=xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.1; |
Time Not Established | Notice (6) | Honoring MDD; IP provisioning mode = IPv6 |
Time Not Established | Critical (3) | SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=xx:xx:xx:xx:xx:10;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1; |
Time Not Established | Critical (3) | Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=xx:xx:xx:xx:xx:10;CMTS-MAC=xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.1; |
Time Not Established | Critical (3) | Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=xx:xx:xx:xx:xx:10;CMTS-MAC=xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.1; |
Time Not Established | Critical (3) | SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=xx:xx:xx:xx:xx:10;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1; |
2017-12-22, 17:53:40 | Critical (3) | Resetting the cable modem due to docsDevResetNow |
2017-12-22, 17:49:50 | Critical (3) | Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=xx:xx:xx:xx:xx:10;CMTS-MAC=xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.1; |
Time Not Established | Critical (3) | SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=xx:xx:xx:xx:xx:10;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1; |
2017-12-22, 14:14:06 | Critical (3) | Resetting the cable modem due to docsDevResetNow |
2017-12-22, 14:11:15 | Critical (3) | Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=xx:xx:xx:xx:xx:10;CMTS-MAC=xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.1; |
2017-12-22, 14:07:01 | Critical (3) | REG RSP not received;CM-MAC=xx:xx:xx:xx:xx:10;CMTS-MAC=xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.1; |
Time Not Established | Critical (3) | SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=xx:xx:xx:xx:xx:10;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1; |
2017-12-22, 13:23:26 | Critical (3) | REG RSP not received;CM-MAC=xx:xx:xx:xx:xx:10;CMTS-MAC=xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.1; |
Time Not Established | Critical (3) | SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=xx:xx:xx:xx:xx:10;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1; |
2017-12-22, 07:11:59 | Critical (3) | REG RSP not received;CM-MAC=xx:xx:xx:xx:xx:10;CMTS-MAC=xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.1; |
Time Not Established | Critical (3) | No Ranging Response received - T3 time-out;CM-MAC=xx:xx:xx:xx:xx:10;CMTS-MAC=xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.1; |
Time Not Established | Critical (3) | SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=xx:xx:xx:xx:xx:10;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1; |
2017-12-22, 07:08:13 | Critical (3) | REG RSP not received;CM-MAC=xx:xx:xx:xx:xx:10;CMTS-MAC=xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.1; |
2017-12-22, 07:06:49 | Critical (3) | Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=xx:xx:xx:xx:xx:10;CMTS-MAC=xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.1; |
2017-12-22, 07:05:34 | Critical (3) | REG RSP not received;CM-MAC=xx:xx:xx:xx:xx:10;CMTS-MAC=xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.1; |
2017-12-22, 07:04:01 | Critical (3) | REG RSP not received;CM-MAC=xx:xx:xx:xx:xx:10;CMTS-MAC=xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.1; |
Time Not Established | Critical (3) | DHCP failed - DHCP Solicit sent, No DHCP Advertise received;CM-MAC=xx:xx:xx:xx:xx:10;CMTS-MAC=xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.1; |
Time Not Established | Critical (3) | Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=xx:xx:xx:xx:xx:10;CMTS-MAC=xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.1; |
Time Not Established | Critical (3) | DHCP failed - DHCP Solicit sent, No DHCP Advertise received;CM-MAC=xx:xx:xx:xx:xx:10;CMTS-MAC=xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.1; |
Note: I removed the MAC addresses, but the CM-MAC and CMTS-MAC do not match.
Latest Log after a factory reset on the modem:
2017-12-23, 09:01:46 | Critical (3) | Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=xx:xx:xx:xx:xx;CMTS-MAC=00:xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.1; |
2017-12-23, 09:00:19 | Notice (6) | CM-STATUS message sent. Event Type Code: 3; Chan ID: N/A; DSID: E; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=xx:xx:xx:xx:xx;CMTS-MAC=00:xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.1; |
2017-12-23, 09:00:19 | Warning (5) | Unicast DSID PSN startup error |
2017-12-23, 08:59:49 | Warning (5) | REG-RSP-MP Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=xx:xx:xx:xx:xx;CMTS-MAC=00:xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.1; |
Time Not Established | Notice (6) | Honoring MDD; IP provisioning mode = IPv6 |
Time Not Established | Critical (3) | SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=xx:xx:xx:xx:xx;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1; |
Time Not Established | Critical (3) | No Ranging Response received - T3 time-out;CM-MAC=xx:xx:xx:xx:xx;CMTS-MAC=00:xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.1; |
Time Not Established | Critical (3) | SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=xx:xx:xx:xx:xx;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1; |
Here are my current connection stats:
| Frequency start Value | |
| This field below allows you to modify the frequency the cable modem start with its scan during initialization and registration. Enter the new start frequency and restart the cable modem for it to take effect. | |
|
<tabindex=-1>Startup Procedure
| Procedure | Status | Comment |
| Acquire Downstream Channel | 729000000 Hz | Locked |
| Connectivity State | OK | Operational |
| Boot State | OK | Operational |
| Security | Enable | BPI+ |
| IP Provisioning Mode | Honor MDD | IPv6 only |
<tabindex=-1>Downstream Bonded Channels
| Channel | Lock Status | Modulation | Channel ID | Frequency | Power | SNR / MER | Unerrored Codewords | Correctable Codewords | Uncorrectable Codewords |
| 1 | Locked | QAM256 | 21 | 729000000 Hz | 6.2 dBmV | 40.3 dB | 48754675 | 0 | 0 |
| 2 | Locked | QAM256 | 1 | 609000000 Hz | 8.1 dBmV | 41.0 dB | 47253420 | 0 | 0 |
| 3 | Locked | QAM256 | 2 | 615000000 Hz | 7.7 dBmV | 40.9 dB | 47261941 | 0 | 0 |
| 4 | Locked | QAM256 | 3 | 621000000 Hz | 7.9 dBmV | 41.0 dB | 47271046 | 0 | 0 |
| 5 | Locked | QAM256 | 4 | 627000000 Hz | 7.4 dBmV | 40.9 dB | 47280141 | 0 | 0 |
| 6 | Locked | QAM256 | 5 | 633000000 Hz | 7.4 dBmV | 40.6 dB | 47285916 | 0 | 0 |
| 7 | Locked | QAM256 | 6 | 639000000 Hz | 7.2 dBmV | 40.7 dB | 47299161 | 0 | 0 |
| 8 | Locked | QAM256 | 7 | 645000000 Hz | 7.1 dBmV | 40.6 dB | 47307951 | 0 | 0 |
| 9 | Locked | QAM256 | 8 | 651000000 Hz | 6.9 dBmV | 40.5 dB | 47317712 | 0 | 0 |
| 10 | Locked | QAM256 | 9 | 657000000 Hz | 6.9 dBmV | 40.5 dB | 47326996 | 0 | 0 |
| 11 | Locked | QAM256 | 10 | 663000000 Hz | 6.9 dBmV | 40.4 dB | 47336669 | 0 | 0 |
| 12 | Locked | QAM256 | 11 | 669000000 Hz | 7.0 dBmV | 40.6 dB | 47345598 | 0 | 0 |
| 13 | Locked | QAM256 | 12 | 675000000 Hz | 7.1 dBmV | 40.1 dB | 47355716 | 0 | 0 |
| 14 | Locked | QAM256 | 13 | 681000000 Hz | 6.9 dBmV | 40.3 dB | 47363949 | 0 | 0 |
| 15 | Locked | QAM256 | 14 | 687000000 Hz | 7.2 dBmV | 40.6 dB | 47373438 | 0 | 0 |
| 16 | Locked | QAM256 | 15 | 693000000 Hz | 6.9 dBmV | 40.2 dB | 47382707 | 0 | 0 |
| 17 | Locked | QAM256 | 16 | 699000000 Hz | 6.8 dBmV | 40.2 dB | 47380079 | 0 | 0 |
| 18 | Locked | QAM256 | 17 | 705000000 Hz | 6.7 dBmV | 40.5 dB | 47410399 | 0 | 0 |
| 19 | Locked | QAM256 | 18 | 711000000 Hz | 6.4 dBmV | 40.4 dB | 47419980 | 0 | 0 |
| 20 | Locked | QAM256 | 19 | 717000000 Hz | 6.2 dBmV | 40.3 dB | 47428801 | 0 | 0 |
| 21 | Locked | QAM256 | 20 | 723000000 Hz | 5.9 dBmV | 40.3 dB | 47430581 | 0 | 0 |
| 22 | Locked | QAM256 | 22 | 735000000 Hz | 5.5 dBmV | 40.2 dB | 47438250 | 0 | 0 |
| 23 | Locked | QAM256 | 23 | 741000000 Hz | 5.9 dBmV | 40.2 dB | 47444370 | 0 | 0 |
| 24 | Locked | QAM256 | 24 | 747000000 Hz | 5.3 dBmV | 40.1 dB | 47449904 | 0 | 0 |
| 25 | Not Locked | Unknown | 0 | 0 Hz | 0.0 dBmV | 0.0 dB | 0 | 0 | 0 |
| 26 | Not Locked | Unknown | 0 | 0 Hz | 0.0 dBmV | 0.0 dB | 0 | 0 | 0 |
| 27 | Not Locked | Unknown | 0 | 0 Hz | 0.0 dBmV | 0.0 dB | 0 | 0 | 0 |
| 28 | Not Locked | Unknown | 0 | 0 Hz | 0.0 dBmV | 0.0 dB | 0 | 0 | 0 |
| 29 | Not Locked | Unknown | 0 | 0 Hz | 0.0 dBmV | 0.0 dB | 0 | 0 | 0 |
| 30 | Not Locked | Unknown | 0 | 0 Hz | 0.0 dBmV | 0.0 dB | 0 | 0 | 0 |
| 31 | Not Locked | Unknown | 0 | 0 Hz | 0.0 dBmV | 0.0 dB | 0 | 0 | 0 |
| 32 | Not Locked | Unknown | 0 | 0 Hz | 0.0 dBmV | 0.0 dB | 0 | 0 | 0 |
<tabindex=-1>Upstream Bonded Channels
| Channel | Lock Status | Modulation | Channel ID | Frequency | Power |
| 1 | Locked | ATDMA | 1 | 35800000 Hz | 49.5 dBmV |
| 2 | Locked | ATDMA | 2 | 29400000 Hz | 50.0 dBmV |
| 3 | Locked | ATDMA | 3 | 23000000 Hz | 50.0 dBmV |
| 4 | Not Locked | Unknown | 0 | 0 Hz | 0.0 dBmV |
| 5 | Not Locked | Unknown | 0 | 0 Hz | 0.0 dBmV |
| 6 | Not Locked | Unknown | 0 | 0 Hz | 0.0 dBmV |
| 7 | Not Locked | Unknown | 0 | 0 Hz | 0.0 dBmV |
| 8 | Not Locked | Unknown | 0 | 0 Hz | 0.0 dBmV |
<tabindex=-1>Downstream OFDM Channels
| Channel | Lock Status | Modulation / Profile ID | Channel ID | Frequency | Power | SNR / MER | Active Subcarrier Number Range | Unerrored Codewords | Correctable Codewords | Uncorrectable Codewords |
| 1 | Not Locked | Unknown | 0 | 0 Hz | 0 dBmV | 0 dB | 0 ~ 0 | 0 | 0 | 0 |
| 2 | Not Locked | Unknown | 0 | 0 Hz | 0 dBmV | 0 dB | 0 ~ 0 | 0 | 0 | 0 |
<tabindex=-1>Upstream OFDMA Channels
| Channel | Lock Status | Modulation / Profile ID | Channel ID | Frequency | Power |
| 1 | Not Locked | Unknown | 0 | 0 Hz | 0 dBmV |
| 2 | Not Locked | Unknown | 0 | 0 Hz | 0 dBmV |
Whooooa! All 3 upstream channels are at 50db. THAT my friend is your issue. CM is your Cable Modem. CMTS is the Cable Modem Termination System at the Cable Company. Your modem is SCREAMING to be heard by the CMTS. The normal range is 30db to 45db. You must have wiggle room. When your modem cannot be heard, it reboots.