Intermittent performance issues

[karlbeckman]

---

@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. 

[MsRaye]

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.

[sktn77a]

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

Channel	Lock Status	Modulation	Channel ID	Frequency	Power	SNR	Corrected	Uncorrectables
1	Locked	256QAM	32	645.00 MHz	-1.80 dBmV	33.96 dB	271	8994
2	Locked	256QAM	10	513.00 MHz	0.10 dBmV	33.96 dB	166	7495
3	Locked	256QAM	11	519.00 MHz	0.30 dBmV	33.96 dB	133	7672
4	Locked	256QAM	12	525.00 MHz	0.10 dBmV	33.83 dB	137	7559
5	Locked	256QAM	13	531.00 MHz	-0.40 dBmV	33.83 dB	156	7780
6	Locked	256QAM	14	537.00 MHz	-0.30 dBmV	33.83 dB	77	7527
7	Locked	256QAM	15	543.00 MHz	-0.60 dBmV	33.96 dB	602	6741
8	Locked	256QAM	16	549.00 MHz	-1.30 dBmV	33.96 dB	87	7925
9	Locked	256QAM	17	555.00 MHz	-2.30 dBmV	33.49 dB	173	7999
10	Locked	256QAM	18	561.00 MHz	-2.70 dBmV	33.38 dB	98	8058
11	Locked	256QAM	19	567.00 MHz	-2.50 dBmV	33.49 dB	110	8076
12	Locked	256QAM	20	573.00 MHz	-2.80 dBmV	33.38 dB	130	8199
13	Locked	256QAM	21	579.00 MHz	-3.10 dBmV	33.38 dB	129	8219
14	Locked	256QAM	22	585.00 MHz	-2.10 dBmV	33.83 dB	124	8189
15	Locked	256QAM	23	591.00 MHz	-1.60 dBmV	34.35 dB	95	8213
16	Locked	256QAM	24	597.00 MHz	-1.50 dBmV	33.96 dB	115	8327
17	Locked	256QAM	25	603.00 MHz	-1.40 dBmV	33.83 dB	238	8591
18	Locked	256QAM	26	609.00 MHz	-1.10 dBmV	34.48 dB	268	8486
19	Locked	256QAM	27	615.00 MHz	-1.30 dBmV	34.35 dB	367	8624
20	Locked	256QAM	28	621.00 MHz	-1.20 dBmV	34.35 dB	528	8488
21	Locked	256QAM	29	627.00 MHz	-1.00 dBmV	34.35 dB	198	8676
22	Locked	256QAM	30	633.00 MHz	-0.90 dBmV	34.48 dB	144	8702
23	Locked	256QAM	31	639.00 MHz	-1.10 dBmV	33.96 dB	152	8808
24	Locked	256QAM	9	507.00 MHz	-0.30 dBmV	33.96 dB	295	7932

Upstream Bonded Channels

Channel	Lock Status	US Channel Type	Channel ID	Symbol Rate	Frequency	Power
1	Locked	ATDMA	4	2560 kSym/s	37.00 MHz	35.00 dBmV
2	Locked	TDMA	1	2560 kSym/s	19.40 MHz	35.00 dBmV
3	Locked	ATDMA	3	5120 kSym/s	30.60 MHz	35.00 dBmV
4	Locked	ATDMA	2	5120 kSym/s	24.20 MHz	35.00 dBmV

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

[MsRaye]

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...

[sktn77a]

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

Procedure	Status	Comment
Acquire Downstream Channel		Locked
Connectivity State	OK	Operational
Boot State	OK	Operational
Configuration File	OK
Security	Enabled	BPI+
DOCSIS Network Access Enabled	Allowed

Downstream Bonded Channels

Channel	Lock Status	Modulation	Channel ID	Frequency	Power	SNR	Corrected	Uncorrectables
1	Locked	256QAM	32	645.00 MHz	-1.40 dBmV	33.83 dB	2	0
2	Locked	256QAM	10	513.00 MHz	1.00 dBmV	33.83 dB	59	0
3	Locked	256QAM	11	519.00 MHz	1.10 dBmV	33.96 dB	66	0
4	Locked	256QAM	12	525.00 MHz	0.70 dBmV	33.83 dB	51	0
5	Locked	256QAM	13	531.00 MHz	0.10 dBmV	33.83 dB	50	0
6	Locked	256QAM	14	537.00 MHz	0.20 dBmV	33.96 dB	41	0
7	Locked	256QAM	15	543.00 MHz	-0.10 dBmV	33.83 dB	26	0
8	Locked	256QAM	16	549.00 MHz	-0.70 dBmV	33.96 dB	7	0
9	Locked	256QAM	17	555.00 MHz	-1.60 dBmV	33.49 dB	34	0
10	Locked	256QAM	18	561.00 MHz	-1.80 dBmV	33.49 dB	30	0
11	Locked	256QAM	19	567.00 MHz	-1.80 dBmV	33.38 dB	25	0
12	Locked	256QAM	20	573.00 MHz	-2.00 dBmV	33.49 dB	17	0
13	Locked	256QAM	21	579.00 MHz	-2.40 dBmV	33.49 dB	20	0
14	Locked	256QAM	22	585.00 MHz	-1.40 dBmV	33.83 dB	12	0
15	Locked	256QAM	23	591.00 MHz	-0.90 dBmV	33.96 dB	6	0
16	Locked	256QAM	24	597.00 MHz	-0.90 dBmV	33.96 dB	2	0
17	Locked	256QAM	25	603.00 MHz	-1.00 dBmV	33.96 dB	6	0
18	Locked	256QAM	26	609.00 MHz	-0.80 dBmV	34.35 dB	3	0
19	Locked	256QAM	27	615.00 MHz	-1.20 dBmV	34.35 dB	3	0
20	Locked	256QAM	28	621.00 MHz	-1.20 dBmV	34.35 dB	3	0
21	Locked	256QAM	29	627.00 MHz	-1.20 dBmV	34.35 dB	3	0
22	Locked	256QAM	30	633.00 MHz	-1.10 dBmV	34.35 dB	2	0
23	Locked	256QAM	31	639.00 MHz	-1.10 dBmV	33.96 dB	0	0
24	Locked	256QAM	9	507.00 MHz	0.60 dBmV	33.96 dB	59	0

Upstream Bonded Channels

Channel	Lock Status	US Channel Type	Channel ID	Symbol Rate	Frequency	Power
1	Locked	ATDMA	4	2560 kSym/s	37.00 MHz	35.00 dBmV
2	Locked	TDMA	1	2560 kSym/s	19.40 MHz	35.00 dBmV
3	Locked	ATDMA	3	5120 kSym/s	30.60 MHz	35.00 dBmV
4	Locked	ATDMA	2	5120 kSym/s	24.20 MHz	35.00 dBmV

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

[sktn77a]

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

[MsRaye]

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

[sktn77a]

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.  

[MsRaye]

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?

[MsRaye]

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

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