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1 UPSTREAM CHANNEL BONDING

Frequent Visitor

1 UPSTREAM CHANNEL BONDING

I had have an Arris SBG67832-AC and only 1 upstream channel out of 4 was bonding. Comcast tech support told me my modem was bad. I purchased a new Modem Netgear C6300. 16 Down 4 Up channels. Still only getting 1 Upstream channel bonding. with the new Modem. Down load speeds are 150 Mbs upload speed is only 10Mbs. Comcast tech support said my modem is bad. Find very hard to believe new modem is having same issue.

 

Thanks

Expert

Re: 1 UPSTREAM CHANNEL BONDING

What do the modem's signal stats look like ? Refer to the User Manual here for login to the user interface instructions here;

 

https://www.netgear.com/support/product/C6300.aspx#docs

Please post the *Downstream Power Level*, the *Upstream Power Level*, and the *SNR* (Signal to Noise Ratio) numbers.




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Frequent Visitor

Re: 1 UPSTREAM CHANNEL BONDING

 
 
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

<tabindex=-1>Startup Procedure</tabindex=-1>
Procedure Status Comment
Acquire Downstream Channel 549000000 Hz Locked
Connectivity State Ok Operational
Boot State Ok Operational
Security Enabled BPI+
IP Provisioning Mode Honor MDD honorMdd(4)

Downstream Bonded Channels
Channel Lock Status Modulation Channel ID Frequency Power SNR Correctables UnCorrectables
1 Locked QAM 256 1 459000000 Hz -10.5 dBmV 37.6 dB 0 0
2 Locked QAM 256 2 465000000 Hz -10.4 dBmV 37.3 dB 0 0
3 Locked QAM 256 3 471000000 Hz -10.2 dBmV 37.6 dB 9 0
4 Locked QAM 256 4 477000000 Hz -10.4 dBmV 37.6 dB 0 0
5 Locked QAM 256 5 483000000 Hz -10.5 dBmV 37.6 dB 0 0
6 Locked QAM 256 6 489000000 Hz -10.4 dBmV 37.6 dB 0 0
7 Locked QAM 256 7 495000000 Hz -10.7 dBmV 37.6 dB 5 0
8 Locked QAM 256 8 507000000 Hz -10.7 dBmV 37.6 dB 0 0
9 Locked QAM 256 9 513000000 Hz -11.0 dBmV 37.3 dB 0 0
10 Locked QAM 256 10 519000000 Hz -11.0 dBmV 37.3 dB 0 0
11 Locked QAM 256 11 525000000 Hz -10.9 dBmV 37.3 dB 18 0
12 Locked QAM 256 12 531000000 Hz -11.2 dBmV 37.3 dB 0 0
13 Locked QAM 256 13 537000000 Hz -11.5 dBmV 36.6 dB 0 0
14 Locked QAM 256 14 543000000 Hz -11.7 dBmV 36.3 dB 0 0
15 Locked QAM 256 15 549000000 Hz -11.7 dBmV 36.6 dB 0 0
16 Locked QAM 256 16 555000000 Hz -11.9 dBmV 36.6 dB 0 0

Upstream Bonded Channels
Channel Lock Status US Channel Type Channel ID Symbol Rate Frequency Power
1 Locked ATDMA 1 5120 Ksym/sec 35800000 Hz 56.5 dBmV
2 Not Locked N/A Unknown 0 Ksym/sec 0 Hz 0.0 dBmV
3 Not Locked N/A Unknown 0 Ksym/sec 0 Hz 0.0 dBmV
4 Not Locked N/A Unknown 0 Ksym/sec 0 Hz 0.0 dBmV

Current System Time: Thu Jul 11 07:23:41 2019
System Up Time: 01:40:54
 
 
Expert

Re: 1 UPSTREAM CHANNEL BONDING

The upstream power is too high / out of spec.  The downstream power is too weak as well. That can cause random disconnects, spontaneous re-booting of the modem,  speed and latency problems, and the un-bonding of channels. 


In a self troubleshooting effort to try to obtain better connectivity / more wiggle room, check to see if there are there any excess/unneeded coax cable splitters in the line leading to the modem that can be eliminated/re-configured. Any splitters that remain should be high quality and cable rated for 5-1002 MHz, bi-directional, and no gold colored garbage types like GE, RadioShack, RCA, Philips, Leviton, Magnavox, and Rocketfish from big box stores like Home Depot, Lowes, Target, Wal-Mart etc. Splitters should be swapped with known to be good / new ones to test

If there aren't any unneeded splitters that can be eliminated and if your coax wiring setup can't be reconfigured so that there is a single two way splitter connected directly off of the drop from the street/pole with one port feeding the modem and the other port feeding the rest of the house/equipment with additional splits as needed, and you've checked all the wiring and fittings for integrity and tightness and refresh them by taking them apart then check for and clean off any corrosion / oxidation on the center wire and put them back together again, then perhaps it's best to book a tech visit to investigate and correct.



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Frequent Visitor

Re: 1 UPSTREAM CHANNEL BONDING

After self troubleshooting these are my reading now. They changed a little. My upstream channel is now 3 instead of 1. My spltter is the one Comcast provided.

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

<tabindex=-1>Startup Procedure</tabindex=-1>
Procedure Status Comment
Acquire Downstream Channel 639000000 Hz Locked
Connectivity State Ok Operational
Boot State Ok Operational
Security Enabled BPI+
IP Provisioning Mode Honor MDD honorMdd(4)

Downstream Bonded Channels
Channel Lock Status Modulation Channel ID Frequency Power SNR Correctables UnCorrectables
1 Locked QAM 256 17 561000000 Hz -12.0 dBmV 36.6 dB 0 0
2 Locked QAM 256 18 567000000 Hz -11.9 dBmV 37.3 dB 0 0
3 Locked QAM 256 19 573000000 Hz -12.2 dBmV 36.3 dB 0 0
4 Locked QAM 256 20 579000000 Hz -13.0 dBmV 36.3 dB 0 0
5 Locked QAM 256 21 585000000 Hz -12.9 dBmV 36.3 dB 0 0
6 Locked QAM 256 22 591000000 Hz -12.7 dBmV 36.3 dB 0 0
7 Locked QAM 256 23 597000000 Hz -12.9 dBmV 35.5 dB 0 0
8 Locked QAM 256 24 603000000 Hz -12.9 dBmV 35.5 dB 0 0
9 Locked QAM 256 25 609000000 Hz -13.0 dBmV 35.5 dB 0 0
10 Locked QAM 256 26 615000000 Hz -13.4 dBmV 35.7 dB 0 0
11 Locked QAM 256 27 621000000 Hz -13.8 dBmV 35.5 dB 0 0
12 Locked QAM 256 28 627000000 Hz -13.3 dBmV 35.7 dB 0 0
13 Locked QAM 256 29 639000000 Hz -13.4 dBmV 35.5 dB 0 0
14 Locked QAM 256 30 645000000 Hz -13.9 dBmV 35.0 dB 0 0
15 Locked QAM 256 31 651000000 Hz -14.3 dBmV 34.9 dB 0 0
16 Locked QAM 256 32 657000000 Hz -15.0 dBmV 34.4 dB 0 0

Upstream Bonded Channels
Channel Lock Status US Channel Type Channel ID Symbol Rate Frequency Power
1 Locked ATDMA 3 5120 Ksym/sec 23000000 Hz 56.5 dBmV
2 Not Locked N/A Unknown 0 Ksym/sec 0 Hz 0.0 dBmV
3 Not Locked N/A Unknown 0 Ksym/sec 0 Hz 0.0 dBmV
4 Not Locked N/A Unknown 0 Ksym/sec 0 Hz 0.0 dBmV

Current System Time: Thu Jul 11 11:00:09 2019
System Up Time: 00:03:54
 
 
Expert

Re: 1 UPSTREAM CHANNEL BONDING

Still needs work / out of spec. If you can't get it any better, as stated, you should get a tech out to investigate / correct. Good luck with it !



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Frequent Visitor

Re: 1 UPSTREAM CHANNEL BONDING

thanks for your help

Expert

Re: 1 UPSTREAM CHANNEL BONDING

Quite welcome ! Please post back with how things turn out.



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Frequent Visitor

Re: 1 UPSTREAM CHANNEL BONDING

They were out today. He put new slitter in my garage where it feeds the hous with a new style with alot less signal loss. He put new weathr proof ends on my outide cable. Huge differnece.

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

<tabindex=-1>Startup Procedure</tabindex=-1>
Procedure Status Comment
Acquire Downstream Channel 555000000 Hz Locked
Connectivity State Ok Operational
Boot State Ok Operational
Security Enabled BPI+
IP Provisioning Mode Honor MDD honorMdd(4)

Downstream Bonded Channels
Channel Lock Status Modulation Channel ID Frequency Power SNR Correctables UnCorrectables
1 Locked QAM 256 1 459000000 Hz -6.9 dBmV 38.9 dB 0 0
2 Locked QAM 256 2 465000000 Hz -6.7 dBmV 38.6 dB 0 0
3 Locked QAM 256 3 471000000 Hz -6.7 dBmV 38.9 dB 12 0
4 Locked QAM 256 4 477000000 Hz -6.7 dBmV 38.9 dB 0 0
5 Locked QAM 256 5 483000000 Hz -6.7 dBmV 38.6 dB 0 0
6 Locked QAM 256 6 489000000 Hz -6.9 dBmV 38.9 dB 22 0
7 Locked QAM 256 7 495000000 Hz -6.7 dBmV 38.6 dB 16 0
8 Locked QAM 256 8 507000000 Hz -7.0 dBmV 38.6 dB 0 0
9 Locked QAM 256 9 513000000 Hz -7.2 dBmV 38.6 dB 0 0
10 Locked QAM 256 10 519000000 Hz -7.2 dBmV 38.6 dB 0 0
11 Locked QAM 256 11 525000000 Hz -7.2 dBmV 38.6 dB 16 0
12 Locked QAM 256 12 531000000 Hz -7.4 dBmV 38.6 dB 0 0
13 Locked QAM 256 13 537000000 Hz -7.5 dBmV 38.6 dB 0 0
14 Locked QAM 256 14 543000000 Hz -7.9 dBmV 38.6 dB 0 0
15 Locked QAM 256 15 549000000 Hz -8.0 dBmV 37.6 dB 0 0
16 Locked QAM 256 16 555000000 Hz -8.0 dBmV 38.6 dB 0 0

Upstream Bonded Channels
Channel Lock Status US Channel Type Channel ID Symbol Rate Frequency Power
1 Locked ATDMA 3 5120 Ksym/sec 23000000 Hz 51.0 dBmV
2 Locked ATDMA 2 5120 Ksym/sec 29400000 Hz 51.0 dBmV
3 Locked ATDMA 1 5120 Ksym/sec 35800000 Hz 51.0 dBmV
4 Not Locked N/A Unknown 0 Ksym/sec 0 Hz 0.0 dBmV

Current System Time: Fri Jul 12 17:52:24 2019
System Up Time: 1 day 06:33:32
 
 
Expert

Re: 1 UPSTREAM CHANNEL BONDING

It could still be better..



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Official Employee

Re: 1 UPSTREAM CHANNEL BONDING

Hello, rcastle2! I'm glad you reached out to us here about this! I'm glad to see that your levels are looking much better. Have you had a chance yet to run some speed tests to see if you are back to the speeds you are subscribed to? I'd like to make sure we get this 100% taken care of for you. Smiley Happy

I look forward to your update. 


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Official Employee

Re: 1 UPSTREAM CHANNEL BONDING

rcastle2, as I have not heard back from you in some time, I have closed this thread to further comments. I hope you were able to troubleshoot and get better speeds, but if you still need assistance, please feel free to start a new thread.


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