Forum Discussion

DesetDog's avatar
DesetDog
New Contributor
3 years ago

Inconsistent Internet During Gaming

Hello.  I'm constantly getting dropped from games and my internet feels unstable.  Sometimes my internet drops all together.  I'm done multiple equipment reboots and checked firmware on my router and modem.  Modem is NETGEAR CM1000.   I have this "SYNC Timing Synchronization failure" plus some other issues in my modem logs.  Any thoughts?  Thanks.

Time Priority Description
2021-11-14, 17:39:09 Critical (3) SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=78:d2:94:ff:00:48;CMTS-MAC=00:27:90:0d:98:ee;CM-QOS=1.1;CM-VER=3.1;
2021-11-14, 17:27:31 Notice (6) CM-STATUS message sent. Event Type Code: 3; Chan ID: N/A; DSID: z; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=78:d2:94:ff:00:48;CMTS-MAC=00:27:90:0d:98:ee;CM-QOS=1.1;CM-VER=3.1;
2021-11-14, 17:27:23 Warning (5) Unicast DSID PSN startup error
2021-11-14, 17:26:59 Warning (5) Dynamic Range Window violation
2021-11-14, 17:26:59 Warning (5) RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=78:d2:94:ff:00:48;CMTS-MAC=00:27:90:0d:98:ee;CM-QOS=1.1;CM-VER=3.1;
2021-11-14, 17:26:59 Warning (5) Dynamic Range Window violation
2021-11-14, 17:26:59 Warning (5) RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=78:d2:94:ff:00:48;CMTS-MAC=00:27:90:0d:98:ee;CM-QOS=1.1;CM-VER=3.1;
2021-11-14, 17:26:59 Warning (5) Dynamic Range Window violation
2021-11-14, 17:26:59 Warning (5) RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=78:d2:94:ff:00:48;CMTS-MAC=00:27:90:0d:98:ee;CM-QOS=1.1;CM-VER=3.1;
2021-11-14, 17:26:55 Notice (6) DS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2 3.;CM-MAC=78:d2:94:ff:00:48;CMTS-MAC=00:27:90:0d:98:ee;CM-QOS=1.1;CM-VER=3.1;
2021-11-14, 17:26:50 Notice (6) TLV-11 - unrecognized OID;CM-MAC=78:d2:94:ff:00:48;CMTS-MAC=00:27:90:0d:98:ee;CM-QOS=1.1;CM-VER=3.1;
2021-11-14, 17:26:49 Warning (5) DHCP WARNING - Non-critical field invalid in response ;CM-MAC=78:d2:94:ff:00:48;CMTS-MAC=00:27:90:0d:98:ee;CM-QOS=1.1;CM-VER=3.1;
Time Not Established Notice (6) Honoring MDD; IP provisioning mode = IPv4
Time Not Established Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=78:d2:94:ff:00:48;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;
2021-11-10, 18:05:15 Critical (3) 16 consecutive T3 timeouts while trying to range on upstream channel 1;CM-MAC=78:d2:94:ff:00:48;CMTS-MAC=00:27:90:0d:98:ee;CM-QOS=1.1;CM-VER=3.1;
2021-11-10, 18:05:15 Critical (3) Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=78:d2:94:ff:00:48;CMTS-MAC=00:27:90:0d:98:ee;CM-QOS=1.1;CM-VER=3.1;
2021-11-10, 18:02:27 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=78:d2:94:ff:00:48;CMTS-MAC=00:27:90:0d:98:ee;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=78:d2:94:ff:00:48;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;
2021-09-07, 22:56:31 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=78:d2:94:ff:00:48;CMTS-MAC=00:27:90:0d:98:ee;CM-QOS=1.1;CM-VER=3.1;
2021-09-07, 22:55:59 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=78:d2:94:ff:00:48;CMTS-MAC=00:27:90:0d:98:ee;CM-QOS=1.1;CM-VER=3.1;
2021-09-07, 22:55:47 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=78:d2:94:ff:00:48;CMTS-MAC=00:27:90:0d:98:ee;CM-QOS=1.1;CM-VER=3.1;
2021-09-07, 22:55:37 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=78:d2:94:ff:00:48;CMTS-MAC=00:27:90:0d:98:ee;CM-QOS=1.1;CM-VER=3.1;
2021-09-07, 22:55:35 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=78:d2:94:ff:00:48;CMTS-MAC=00:27:90:0d:98:ee;CM-QOS=1.1;CM-VER=3.1;
2021-09-07, 22:53:27 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=78:d2:94:ff:00:48;CMTS-MAC=00:27:90:0d:98:ee;CM-QOS=1.1;CM-VER=3.1;
2021-09-07, 22:53:20 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=78:d2:94:ff:00:48;CMTS-MAC=00:27:90:0d:98:ee;CM-QOS=1.1;CM-VER=3.1;
2021-09-07, 05:13:11 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=78:d2:94:ff:00:48;CMTS-MAC=00:27:90:0d:98:ee;CM-QOS=1.1;CM-VER=3.1;
2021-09-07, 05:12:42 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=78:d2:94:ff:00:48;CMTS-MAC=00:27:90:0d:98:ee;CM-QOS=1.1;CM-VER=3.1;
2021-09-07, 05:12:29 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=78:d2:94:ff:00:48;CMTS-MAC=00:27:90:0d:98:ee;CM-QOS=1.1;CM-VER=3.1;
2021-09-07, 05:12:15 Critical (3) Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=78:d2:94:ff:00:48;CMTS-MAC=00:27:90:0d:98:ee;CM-QOS=1.1;CM-VER=3.1;
2021-09-07, 05:12:14 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=78:d2:94:ff:00:48;CMTS-MAC=00:27:90:0d:98:ee;CM-QOS=1.1;CM-VER=3.1;
2021-09-07, 05:10:29 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=78:d2:94:ff:00:48;CMTS-MAC=00:27:90:0d:98:ee;CM-QOS=1.1;CM-VER=3.1;
2021-09-07, 05:10:06 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=78:d2:94:ff:00:48;CMTS-MAC=00:27:90:0d:98:ee;CM-QOS=1.1;CM-VER=3.1;
2021-09-07, 05:09:58 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=78:d2:94:ff:00:48;CMTS-MAC=00:27:90:0d:98:ee;CM-QOS=1.1;CM-VER=3.1;
2021-08-28, 23:08:15 Critical (3) SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=78:d2:94:ff:00:48;CMTS-MAC=00:27:90:0d:98:ee;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=78:d2:94:ff:00:48;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;
2021-08-21, 14:08:13 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=78:d2:94:ff:00:48;CMTS-MAC=00:27:90:0d:98:ee;CM-QOS=1.1;CM-VER=3.1;
2021-08-21, 12:05:06 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=78:d2:94:ff:00:48;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;
2021-08-21, 12:05:02 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=78:d2:94:ff:00:48;CMTS-MAC=00:27:90:0d:98:ee;CM-QOS=1.1;CM-VER=3.1;
2021-08-21, 12:04:42 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=78:d2:94:ff:00:48;CMTS-MAC=00:27:90:0d:98:ee;CM-QOS=1.1;CM-VER=3.1;
2021-08-21, 12:04:42 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=78:d2:94:ff:00:48;CMTS-MAC=00:27:90:0d:98:ee;CM-QOS=1.1;CM-VER=3.1;

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.
Starting Frequency  381000000

<tabindex=-1>Startup Procedure
Procedure Status Comment
Acquire Downstream Channel 903000000 Hz Locked
Connectivity State OK Operational
Boot State OK Operational
Security Enable BPI+
IP Provisioning Mode Honor MDD IPv4 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 903000000 Hz -0.8 dBmV 40.6 dB 303388718 3 0
2 Locked QAM256 1 783000000 Hz -1.1 dBmV 40.8 dB 335350004 0 0
3 Locked QAM256 2 789000000 Hz -1.2 dBmV 40.8 dB 335353952 0 0
4 Locked QAM256 3 795000000 Hz -1.2 dBmV 40.7 dB 335357953 0 0
5 Locked QAM256 4 801000000 Hz -1.1 dBmV 40.7 dB 335360365 0 0
6 Locked QAM256 5 807000000 Hz -1.1 dBmV 40.9 dB 335364637 0 0
7 Locked QAM256 6 813000000 Hz -0.9 dBmV 40.8 dB 335368814 0 0
8 Locked QAM256 7 819000000 Hz -1.2 dBmV 40.7 dB 335372677 0 0
9 Locked QAM256 8 825000000 Hz -1.2 dBmV 40.7 dB 335376917 0 0
10 Locked QAM256 9 831000000 Hz -1.0 dBmV 40.9 dB 335381687 0 0
11 Locked QAM256 10 837000000 Hz -0.9 dBmV 40.7 dB 335385640 0 0
12 Locked QAM256 11 843000000 Hz -0.9 dBmV 40.7 dB 335388861 0 0
13 Locked QAM256 12 849000000 Hz -1.2 dBmV 40.6 dB 335392413 0 0
14 Locked QAM256 13 855000000 Hz -0.9 dBmV 40.7 dB 335396111 2 0
15 Locked QAM256 14 861000000 Hz -0.8 dBmV 40.7 dB 335400080 1 0
16 Locked QAM256 15 867000000 Hz -1.1 dBmV 40.4 dB 335403795 3 0
17 Locked QAM256 16 873000000 Hz -0.9 dBmV 40.6 dB 335408251 1 0
18 Locked QAM256 17 879000000 Hz -0.6 dBmV 40.6 dB 302609709 2 0
19 Locked QAM256 18 885000000 Hz -0.8 dBmV 40.5 dB 302616199 2 0
20 Locked QAM256 19 891000000 Hz -0.9 dBmV 40.4 dB 302624330 2 0
21 Locked QAM256 20 897000000 Hz -0.7 dBmV 40.5 dB 302631132 1 0
22 Locked QAM256 22 909000000 Hz -0.8 dBmV 40.6 dB 302638528 1 0
23 Locked QAM256 23 915000000 Hz -0.6 dBmV 40.5 dB 302646366 4 0
24 Locked QAM256 24 921000000 Hz -0.4 dBmV 40.6 dB 302653933 2 0
25 Locked QAM256 25 927000000 Hz -0.5 dBmV 40.5 dB 302661114 2 0
26 Locked QAM256 26 933000000 Hz -0.7 dBmV 40.6 dB 302668719 1 0
27 Locked QAM256 27 939000000 Hz -0.7 dBmV 40.6 dB 302676047 5 0
28 Locked QAM256 28 945000000 Hz -0.7 dBmV 40.6 dB 302683704 1 0
29 Locked QAM256 29 951000000 Hz -1.1 dBmV 40.4 dB 302691030 1 0
30 Locked QAM256 30 957000000 Hz -1.4 dBmV 40.3 dB 302696571 0 0
31 Locked QAM256 31 963000000 Hz -1.9 dBmV 40.2 dB 302697317 2 0
32 Locked QAM256 32 969000000 Hz -1.6 dBmV 40.5 dB 302698599 0 0