Lead Moderator

Re: Upstream bonding issues

@jeremiah90 feel free to contact us directly to get that scheduled.


Please include your account number, verification of your service address,

your general availability, your best contact number for the precall and your 

preference for precalls or texts.


Look forward to hearing from you.


 We can be reached directly at Forums_Help


Julia R.
Spectrum-Social Media Customer Care
Lead Moderator-Community Forums


Re: Upstream bonding issues

when you removed the splitter, did you replace it with a barrell to feed just your modem?

 Repost the entire level page, although one US ch is a little high, I'll bet the modem performs a lot better.



Re: Upstream bonding issues

@MsRaye I'm not 100% sure what a barrel is. 

However the exact splitter I had attached to the coax cable was this exact one: https://mjsales.net/products/tru-spec-dsu-3p-3-way-1ghz-splitter


However, it wasn't actually attached to any device. Just a cable running from the wall into that and just sitting there. 


Here is my status as of tonight (3/28). Seems a channel is no longer locked and a few errors along with this in the event log: 

Tue Mar 28 00:53:16 20173No Ranging Response received - T3 time-out;CM-MAC=5c:e3:0e:3c:c6:09;CMTS-MAC=00:17:10:87:a2:c5;CM-QOS=1.1;CM-VER=3.0;


Startup Procedure

Acquire Downstream Channel Locked
Connectivity StateOKOperational
Boot StateOKOperational
Configuration FileOK 
DOCSIS Network Access EnabledAllowed 


Downstream Bonded Channels
ChannelLock StatusModulationChannel IDFrequencyPowerSNRCorrectedUncorrectables
1Locked256QAM24621.00 MHz-7.10 dBmV40.37 dB5049
2Locked256QAM2489.00 MHz-4.40 dBmV40.37 dB7922
3Locked256QAM3495.00 MHz-4.40 dBmV40.95 dB5317
4Locked256QAM4501.00 MHz-4.70 dBmV40.95 dB6723
5Locked256QAM5507.00 MHz-4.80 dBmV40.95 dB6728
6Locked256QAM6513.00 MHz-4.80 dBmV40.95 dB6417
7Locked256QAM7519.00 MHz-5.00 dBmV40.95 dB6729
8Locked256QAM8525.00 MHz-5.30 dBmV40.95 dB7328
9Locked256QAM9531.00 MHz-5.30 dBmV40.95 dB7629
10Locked256QAM10537.00 MHz-5.40 dBmV40.95 dB6244
11Locked256QAM11543.00 MHz-5.90 dBmV40.37 dB9126
12Locked256QAM12549.00 MHz-5.60 dBmV40.37 dB7728
13Locked256QAM13555.00 MHz-6.10 dBmV40.95 dB3369
14Locked256QAM14561.00 MHz-5.90 dBmV40.95 dB5050
15Locked256QAM15567.00 MHz-6.00 dBmV40.37 dB7726
16Locked256QAM16573.00 MHz-6.10 dBmV40.37 dB7530
17Locked256QAM17579.00 MHz-6.10 dBmV40.95 dB4648
18Locked256QAM18585.00 MHz-6.10 dBmV40.37 dB5729
19Locked256QAM19591.00 MHz-6.40 dBmV40.37 dB5146
20Locked256QAM20597.00 MHz-6.70 dBmV40.37 dB7612
21Locked256QAM21603.00 MHz-6.80 dBmV40.37 dB5346
22Locked256QAM22609.00 MHz-6.80 dBmV40.37 dB6237
23Locked256QAM23615.00 MHz-7.20 dBmV40.95 dB4653
24Locked256QAM1483.00 MHz-4.40 dBmV40.37 dB8614


Upstream Bonded Channels
ChannelLock StatusUS Channel TypeChannel IDSymbol RateFrequencyPower
1LockedATDMA25120 kSym/s24.20 MHz49.50 dBmV
2LockedATDMA45120 kSym/s37.00 MHz48.50 dBmV
3LockedATDMA35120 kSym/s30.60 MHz49.25 dBmV



Re: Upstream bonding issues

You need to trace out that and the cable going to the modem... There is a 2 way splitter somewhere. It needs to be replaced with a barrel or splice connector so only the line to the modem is connected to the street.



Re: Upstream bonding issues

I haven't found any 2-way splitters anywhere in the house though. The cable going to the modem has no splitters attached, and the cable is only about 4 feet in length straight into the Surfbord modem. 


No other coax cables in the house have any splitters. 


What is a barrel? Could you show me a pic? And by splitter you mean something like what I liked before, right?


Re: Upstream bonding issues

how about on the outside? Somewhere there is a splitter taking the street connection and feeding it to your modem and to the 3 way splitter..

 A barrel or splice is a fouble female connector that splices to F cables together.

Looks like the center of a grounding block.. if they used a 2 way splitter as the grounding block, it needs to be replaced with a simple grounding block. You can try screwing a 75 ohm terminator onto the unwanted port as well, It might improve levels on the other port.



Re: Upstream bonding issues

Well thanks to Julia_R and the forums, Spectrum scheduled me an appointment this Friday. So I'll let it be for now and ask most of my questions to whomever comes out.


Thanks for all the help to everyone in this thread.