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Proven Sharer

Re: Intermittent performance issues


@karlbeckman wrote:

A question for @agentx5:  This user uses a COAM SB6190 modem with Intel Puma6 chipset.  Has TWC received, validated, and pushed out the new code needed to resolve the documented problems in modems with Puma6?  If not I suspect that that could be an added source of jitter on their high speed connection.


I received a private response from @agentx5 that he could not confirm a code update was needed by or had been pushed to this subscriber's specific COAM internet cable modem unit.  To clarify, not all SB6190s need the fix; later production runs of the SB6190 were built and shipped with a Puma7 Intel processor. 

Expert

Re: Intermittent performance issues

Contact Arris for a warranty replacement due to improper design? They were replacing 6183's in early 2016/late 2015 due to FW issues

 

 In the modems "about" or "Help" screens, it should have a FW date... If it's still early 2016, it was not updated.

 

Browser

Re: Intermittent performance issues

Back to the original topic (!)

The tech came to my house today and "fixed" things.  It's even worse now!  

Are these S/N ratios and channel powers acceptable?

 

Downstream Bonded Channels
ChannelLock StatusModulationChannel IDFrequencyPowerSNRCorrectedUncorrectables
1Locked256QAM32645.00 MHz-1.80 dBmV33.96 dB2718994
2Locked256QAM10513.00 MHz0.10 dBmV33.96 dB1667495
3Locked256QAM11519.00 MHz0.30 dBmV33.96 dB1337672
4Locked256QAM12525.00 MHz0.10 dBmV33.83 dB1377559
5Locked256QAM13531.00 MHz-0.40 dBmV33.83 dB1567780
6Locked256QAM14537.00 MHz-0.30 dBmV33.83 dB777527
7Locked256QAM15543.00 MHz-0.60 dBmV33.96 dB6026741
8Locked256QAM16549.00 MHz-1.30 dBmV33.96 dB877925
9Locked256QAM17555.00 MHz-2.30 dBmV33.49 dB1737999
10Locked256QAM18561.00 MHz-2.70 dBmV33.38 dB988058
11Locked256QAM19567.00 MHz-2.50 dBmV33.49 dB1108076
12Locked256QAM20573.00 MHz-2.80 dBmV33.38 dB1308199
13Locked256QAM21579.00 MHz-3.10 dBmV33.38 dB1298219
14Locked256QAM22585.00 MHz-2.10 dBmV33.83 dB1248189
15Locked256QAM23591.00 MHz-1.60 dBmV34.35 dB958213
16Locked256QAM24597.00 MHz-1.50 dBmV33.96 dB1158327
17Locked256QAM25603.00 MHz-1.40 dBmV33.83 dB2388591
18Locked256QAM26609.00 MHz-1.10 dBmV34.48 dB2688486
19Locked256QAM27615.00 MHz-1.30 dBmV34.35 dB3678624
20Locked256QAM28621.00 MHz-1.20 dBmV34.35 dB5288488
21Locked256QAM29627.00 MHz-1.00 dBmV34.35 dB1988676
22Locked256QAM30633.00 MHz-0.90 dBmV34.48 dB1448702
23Locked256QAM31639.00 MHz-1.10 dBmV33.96 dB1528808
24Locked256QAM9507.00 MHz-0.30 dBmV33.96 dB2957932

 
Upstream Bonded Channels
ChannelLock StatusUS Channel TypeChannel IDSymbol RateFrequencyPower
1LockedATDMA42560 kSym/s37.00 MHz35.00 dBmV
2LockedTDMA12560 kSym/s19.40 MHz35.00 dBmV
3LockedATDMA35120 kSym/s30.60 MHz35.00 dBmV
4LockedATDMA25120 kSym/s24.20 MHz35.00 dBmV


 

Current System Time: Tue Jul 18 18:10:52 2017

Expert

Re: Intermittent performance issues

Uhhhh.. NOPE!

 this looks like a bad amplifier somewhere.

It could be a bad modem but surely the tech would of blamed it if it's coam or replaced it if a leased one...

 

 Oh wait, you mentioned "SIGNAL BOOSTER"   what is it's exact model number and how is it connected? A photo may help as well. We caught TWC improperly installing a lot of a certain model...

 

 

Browser

Re: Intermittent performance issues

Well, today things look different.  I'm wondering if TWC have ahd some other problems outside our house that they may have now fixed (well, hoping)!

 

Startup Procedure
ProcedureStatusComment
Acquire Downstream Channel Locked
Connectivity StateOKOperational
Boot StateOKOperational
Configuration FileOK 
SecurityEnabledBPI+
DOCSIS Network Access EnabledAllowed 

 
Downstream Bonded Channels
ChannelLock StatusModulationChannel IDFrequencyPowerSNRCorrectedUncorrectables
1Locked256QAM32645.00 MHz-1.40 dBmV33.83 dB20
2Locked256QAM10513.00 MHz1.00 dBmV33.83 dB590
3Locked256QAM11519.00 MHz1.10 dBmV33.96 dB660
4Locked256QAM12525.00 MHz0.70 dBmV33.83 dB510
5Locked256QAM13531.00 MHz0.10 dBmV33.83 dB500
6Locked256QAM14537.00 MHz0.20 dBmV33.96 dB410
7Locked256QAM15543.00 MHz-0.10 dBmV33.83 dB260
8Locked256QAM16549.00 MHz-0.70 dBmV33.96 dB70
9Locked256QAM17555.00 MHz-1.60 dBmV33.49 dB340
10Locked256QAM18561.00 MHz-1.80 dBmV33.49 dB300
11Locked256QAM19567.00 MHz-1.80 dBmV33.38 dB250
12Locked256QAM20573.00 MHz-2.00 dBmV33.49 dB170
13Locked256QAM21579.00 MHz-2.40 dBmV33.49 dB200
14Locked256QAM22585.00 MHz-1.40 dBmV33.83 dB120
15Locked256QAM23591.00 MHz-0.90 dBmV33.96 dB60
16Locked256QAM24597.00 MHz-0.90 dBmV33.96 dB20
17Locked256QAM25603.00 MHz-1.00 dBmV33.96 dB60
18Locked256QAM26609.00 MHz-0.80 dBmV34.35 dB30
19Locked256QAM27615.00 MHz-1.20 dBmV34.35 dB30
20Locked256QAM28621.00 MHz-1.20 dBmV34.35 dB30
21Locked256QAM29627.00 MHz-1.20 dBmV34.35 dB30
22Locked256QAM30633.00 MHz-1.10 dBmV34.35 dB20
23Locked256QAM31639.00 MHz-1.10 dBmV33.96 dB00
24Locked256QAM9507.00 MHz0.60 dBmV33.96 dB590

 
Upstream Bonded Channels
ChannelLock StatusUS Channel TypeChannel IDSymbol RateFrequencyPower
1LockedATDMA42560 kSym/s37.00 MHz35.00 dBmV
2LockedTDMA12560 kSym/s19.40 MHz35.00 dBmV
3LockedATDMA35120 kSym/s30.60 MHz35.00 dBmV
4LockedATDMA25120 kSym/s24.20 MHz35.00 dBmV


 

Current System Time: Wed Jul 19 11:01:54 2017

Browser

Re: Intermittent performance issues

Is the signal to noise ratio (34dB) acceptable?
Expert

Re: Intermittent performance issues

my opinion is no, not fixed.. What is the exact model number of the amplifier and where is it connected?

 

Browser

Re: Intermittent performance issues

The amplifier is at the entry box into the house.  It has no label or distinguishing features.  The power supply is inside the house and powers the amplifier through the coax.  

Expert

Re: Intermittent performance issues

ok, is there a seperate coax between the amp and the wall wort? Or is it shared with a cable device and has a Diplexer (looks like a splitter) to add power to the coax and seperate the cable rf  It will have 3 ports, one marked amp, the other marked power.

What's marked on the power supply wall wort? (yeah I know it's 12vdc...)

Does the amplifier have multiple splitter ports on it or is there a seperate splitter?

Is it silver plated or grey painted, what color is the power LED?

 

Expert

Re: Intermittent performance issues

TWC installed many of this manufacturers wrong... especially the ones without the RED (power only) port....

http://www.extreme-broadband.com/amplifiers.html