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I am having some troubles with internet speed and downstream channels, and T3 errors.

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Frequent Visitor

I am having some troubles with internet speed and downstream channels, and T3 errors.

Hello everyone,
 
I am having trouble with my downstream bonded channels. I am on 500mbps speed teir, and our internet seems alittle slow. I have a Netgear C7800. I noticed  that some of the downstream channels will sometimes go to unlocked and back to locked. They seem to flucutate, but have recently gotten more steady. I am in the process of buying a new 1GHZ splitter that was recommended to me by my buddie from work. Can someone check my channels to see if everything looks normal? 

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

Startup Procedure
Procedure Status Comment
Acquire Downstream Channel 741000000 Hz Locked
Connectivity State OK Operational
Boot State OK Operational
Security ENABLED BPI+
IP Provisioning Mode Honor MDD IPv6 only

Downstream Bonded Channels
Channel Lock Status Modulation Channel ID Frequency Power SNR Correctables Uncorrectabables
1 Locked QAM256 37 741000000 Hz 7.0 dBmV 41.8 dB 0 0
2 Locked QAM256 9 573000000 Hz 5.8 dBmV 42.0 dB 0 0
3 Locked QAM256 10 579000000 Hz 5.9 dBmV 42.0 dB 0 0
4 Locked QAM256 11 585000000 Hz 5.9 dBmV 41.7 dB 0 0
5 Locked QAM256 12 591000000 Hz 6.1 dBmV 41.8 dB 0 0
6 Locked QAM256 13 597000000 Hz 6.1 dBmV 41.7 dB 0 0
7 Locked QAM256 14 603000000 Hz 5.9 dBmV 41.7 dB 0 0
8 Locked QAM256 15 609000000 Hz 5.6 dBmV 41.7 dB 0 0
9 Locked QAM256 16 615000000 Hz 5.2 dBmV 41.4 dB 0 0
10 Locked QAM256 17 621000000 Hz 5.1 dBmV 41.4 dB 1 0
11 Locked QAM256 18 627000000 Hz 4.9 dBmV 41.2 dB 0 0
12 Locked QAM256 19 633000000 Hz 4.7 dBmV 41.3 dB 0 0
13 Locked QAM256 20 639000000 Hz 4.6 dBmV 41.1 dB 0 0
14 Locked QAM256 21 645000000 Hz 4.8 dBmV 41.1 dB 0 0
15 Locked QAM256 22 651000000 Hz 5.0 dBmV 41.5 dB 1 0
16 Locked QAM256 23 657000000 Hz 5.1 dBmV 41.4 dB 0 0
17 Locked QAM256 24 663000000 Hz 5.1 dBmV 41.2 dB 0 0
18 Locked QAM256 25 669000000 Hz 5.3 dBmV 41.4 dB 1 0
19 Locked QAM256 26 675000000 Hz 5.5 dBmV 41.3 dB 0 0
20 Locked QAM256 27 681000000 Hz 5.5 dBmV 41.2 dB 0 0
21 Locked QAM256 28 687000000 Hz 5.6 dBmV 41.3 dB 0 0
22 Locked QAM256 29 693000000 Hz 5.6 dBmV 41.4 dB 0 0
23 Locked QAM256 30 699000000 Hz 5.8 dBmV 41.3 dB 0 0
24 Locked QAM256 31 705000000 Hz 6.0 dBmV 41.5 dB 0 0
25 Locked QAM256 32 711000000 Hz 5.8 dBmV 41.5 dB 0 0
26 Locked QAM256 33 717000000 Hz 5.9 dBmV 41.5 dB 0 0
27 Locked QAM256 34 723000000 Hz 5.9 dBmV 41.6 dB 0 0
28 Locked QAM256 35 729000000 Hz 6.2 dBmV 41.5 dB 0 0
29 Locked QAM256 36 735000000 Hz 6.6 dBmV 41.6 dB 0 0
30 Locked QAM256 38 747000000 Hz 7.2 dBmV 41.7 dB 0 0
31 Locked QAM256 39 753000000 Hz 7.5 dBmV 41.8 dB 0 0
32 Locked QAM256 40 759000000 Hz 7.4 dBmV 41.8 dB 0 0

Upstream Bonded Channels
Channel Lock Status US Channel Type Channel ID Symbol Rate Frequency Power
1 Locked ATDMA 2 5120 Ksym/sec 30100000 Hz 42.5 dBmV
2 Locked ATDMA 1 5120 Ksym/sec 36500000 Hz 42.0 dBmV
3 Locked ATDMA 3 5120 Ksym/sec 23700000 Hz 42.0 dBmV
4 Locked ATDMA 4 5120 Ksym/sec 17300000 Hz 42.0 dBmV
5 Not Locked Unknown 0 0 Ksym/sec 0 Hz 0 dBmV
6 Not Locked Unknown 0 0 Ksym/sec 0 Hz 0 dBmV
7 Not Locked Unknown 0 0 Ksym/sec 0 Hz 0 dBmV
8 Not Locked Unknown 0 0 Ksym/sec 0 Hz 0 dBmV

Downstream OFDM Channels
Channel Channel ID Indicator Subcarrier Zero Frequency Active Subcarrier Number Range Total Codewords Uncorrectable Codewords
1 159 Non-Primary 716600000 Hz 1186 ~ 2909 74443257 0
2 0 Other 0 Hz 0 ~ 0 0 0

Upstream OFDMA Channels
Channel UpstreamIsMuted Ranging Status Subcarrier Zero Frequency Active Subcarrier Number Range Symbols Per Frame Tx Power
1   Other 0 Hz 0 ~ 0 0 0 dBmV
2   Other 0 Hz 0 ~ 0 0 0 dBmV
 

 

and  here are the event logs from my router

Time Priority Description
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=28:80:88:ab:70:30;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;
2019-12-03, 18:33:57 Critical (3) Resetting the cable modem due to docsDevResetNow


Also the comcast app shows my router as not connected even though I have internet! I'm wondering if I need a tech to come out.

Highlighted
Frequent Visitor

Re: I am having some troubles with internet speed and downstream channels. I am a total noob, plz he

Edit: Status Update

 

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

Startup Procedure
Procedure Status Comment
Acquire Downstream Channel 741000000 Hz Locked
Connectivity State OK Operational
Boot State OK Operational
Security ENABLED BPI+
IP Provisioning Mode Honor MDD IPv6 only

Downstream Bonded Channels
Channel Lock Status Modulation Channel ID Frequency Power SNR Correctables Uncorrectabables
1 Locked QAM256 37 741000000 Hz 7.1 dBmV 41.6 dB 0 0
2 Locked QAM256 9 573000000 Hz 6.0 dBmV 42.0 dB 0 0
3 Locked QAM256 10 579000000 Hz 6.0 dBmV 41.8 dB 0 0
4 Locked QAM256 11 585000000 Hz 5.9 dBmV 41.7 dB 0 0
5 Locked QAM256 12 591000000 Hz 6.1 dBmV 41.8 dB 0 0
6 Locked QAM256 13 597000000 Hz 6.1 dBmV 41.7 dB 0 0
7 Locked QAM256 14 603000000 Hz 5.9 dBmV 41.6 dB 0 0
8 Locked QAM256 15 609000000 Hz 5.6 dBmV 41.7 dB 0 0
9 Locked QAM256 16 615000000 Hz 5.2 dBmV 41.4 dB 0 0
10 Locked QAM256 17 621000000 Hz 5.1 dBmV 41.2 dB 1 0
11 Locked QAM256 18 627000000 Hz 5.0 dBmV 41.3 dB 0 0
12 Locked QAM256 19 633000000 Hz 4.7 dBmV 41.2 dB 0 0
13 Locked QAM256 20 639000000 Hz 4.7 dBmV 41.3 dB 0 0
14 Locked QAM256 21 645000000 Hz 4.8 dBmV 41.4 dB 0 0
15 Locked QAM256 22 651000000 Hz 5.1 dBmV 41.2 dB 1 0
16 Locked QAM256 23 657000000 Hz 5.1 dBmV 41.4 dB 0 0
17 Locked QAM256 24 663000000 Hz 5.1 dBmV 41.3 dB 0 0
18 Locked QAM256 25 669000000 Hz 5.2 dBmV 41.3 dB 1 0
19 Locked QAM256 26 675000000 Hz 5.2 dBmV 41.1 dB 0 0
20 Locked QAM256 27 681000000 Hz 5.5 dBmV 41.3 dB 2 0
21 Locked QAM256 28 687000000 Hz 5.7 dBmV 41.3 dB 0 0
22 Locked QAM256 29 693000000 Hz 5.8 dBmV 41.3 dB 1 0
23 Locked QAM256 30 699000000 Hz 6.1 dBmV 41.5 dB 0 0
24 Not Locked Unknown 0 0 Hz 0.0 dBmV 0.0 dB 0 0
25 Not Locked Unknown 0 0 Hz 0.0 dBmV 0.0 dB 0 0
26 Not Locked Unknown 0 0 Hz 0.0 dBmV 0.0 dB 0 0
27 Not Locked Unknown 0 0 Hz 0.0 dBmV 0.0 dB 0 0
28 Not Locked Unknown 0 0 Hz 0.0 dBmV 0.0 dB 0 0
29 Not Locked Unknown 0 0 Hz 0.0 dBmV 0.0 dB 0 0
30 Not Locked Unknown 0 0 Hz 0.0 dBmV 0.0 dB 0 0
31 Not Locked Unknown 0 0 Hz 0.0 dBmV 0.0 dB 0 0
32 Not Locked Unknown 0 0 Hz 0.0 dBmV 0.0 dB 0 0

Upstream Bonded Channels
Channel Lock Status US Channel Type Channel ID Symbol Rate Frequency Power
1 Locked ATDMA 2 5120 Ksym/sec 30100000 Hz 42.5 dBmV
2 Locked ATDMA 1 5120 Ksym/sec 36500000 Hz 42.0 dBmV
3 Locked ATDMA 3 5120 Ksym/sec 23700000 Hz 42.0 dBmV
4 Locked ATDMA 4 5120 Ksym/sec 17300000 Hz 42.0 dBmV
5 Not Locked Unknown 0 0 Ksym/sec 0 Hz 0 dBmV
6 Not Locked Unknown 0 0 Ksym/sec 0 Hz 0 dBmV
7 Not Locked Unknown 0 0 Ksym/sec 0 Hz 0 dBmV
8 Not Locked Unknown 0 0 Ksym/sec 0 Hz 0 dBmV

Downstream OFDM Channels
Channel Channel ID Indicator Subcarrier Zero Frequency Active Subcarrier Number Range Total Codewords Uncorrectable Codewords
1 159 Non-Primary 716600000 Hz 1186 ~ 2909 210754523 0
2 0 Other 0 Hz 0 ~ 0 0 0

Upstream OFDMA Channels
Channel UpstreamIsMuted Ranging Status Subcarrier Zero Frequency Active Subcarrier Number Range Symbols Per Frame Tx Power
1   Other 0 Hz 0 ~ 0 0 0 dBmV
2   Other 0 Hz 0 ~ 0 0 0 dBmV

 

sometimes all downstream go to unlocked, but i am still connected!

Highlighted
Frequent Visitor

Re: I am having some troubles with internet speed and downstream channels. I am a total noob, plz he

another edit: I am now starting to get T3 errors

 

Time Priority Description
2019-12-04, 13:01:25 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=28:80:88:ab:70:30;CMTS-MAC=00:a3:d1:5d:b3:94;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=28:80:88:ab:70:30;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;
2019-12-03, 18:33:57 Critical (3) Resetting the cable modem due to docsDevResetNow