T3 T4 Timeouts Reboots often

[laudium]

So I have called twice about this and what do I have to say to get them to come out here?

I read this guys post. This is the SAME EXACT thing happening to me

http://forums.timewarnercable.com/t5/Connectivity/Internet-dropouts-reboots-T3-T4-timeouts/m-p/69615

Location: Matthews, 28105

My modem reboots like 5 times or more daily.

I have done research and you guys have helped me in the past, but I am seeing 55 upstream power level. Agent5x I believe had the same concern last time.

What the HECK do I have to say to get them out here?

Seriously I'm just upset with TWC.

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Downstream Bonding Channel Value

Channel ID	17	18	19	20	21	22	23	24
Frequency	555000000 Hz	561000000 Hz	567000000 Hz	573000000 Hz	579000000 Hz	585000000 Hz	591000000 Hz	597000000 Hz
Signal to Noise Ratio	37 dB	38 dB	37 dB	37 dB	38 dB	37 dB	38 dB	38 dB
Downstream Modulation	QAM256	QAM256	QAM256	QAM256	QAM256	QAM256	QAM256	QAM256
Power Level The Downstream Power Level reading is a snapshot taken at the time this page was requested. Please Reload/Refresh this Page for a new reading	-2 dBmV	-2 dBmV	-3 dBmV	-3 dBmV	-2 dBmV	-2 dBmV	-3 dBmV	-1 dBmV

Upstream Bonding Channel Value

Channel ID	6
Frequency	24200000 Hz
Ranging Service ID	7115
Symbol Rate	5.120 Msym/sec
Power Level	55 dBmV
Upstream Modulation	[3] QPSK [1] 16QAM [2] 64QAM
Ranging Status	Success

Signal Stats (Codewords)Bonding Channel Value

Channel ID	17	18	19	20	21	22	23	24
Total Unerrored Codewords	54191775	53343281	53332811	53350501	53324634	53326442	53327800	53342358
Total Correctable Codewords	0	0	0	0	23	19	15	20
Total Uncorrectable Codewords	556	552	587	1517	2171	1477	1431	1561

[MsRaye · Accepted solution]

your upstream is bad, it's maxed out and WILL NOT WORK , it should have 4 US channels!

verify there's no extra splitters and everything is tight

Call twc if not obvious, this CANNOT be fixed over the phone, needs a tech out

[laudium]

Okay. I am very pleased with TWC now.

Two technicians came out and found nothing at first when looking on modem side. Then they took a reading from the splitter oustide and found noise. This was then isolated to a bad outlet on 1 of 2 TV coaxicals. This was creating ingress and causing the modem to reboot. I did some read and this can even be related to a neighbors wiring causing problems for everyone on that splitter. This sound terrifying because some people do stuff like this picture below I found on a site about ingess. LOL

 (Note:THIS IS NOT MY PHOTO OR MY EQUIPMENT NOT TWC's EITHER )

Link: https://www.dslreports.com/faq/cabletech/3.1_Ingress

Now the modem levels look great!!!

So anyone else reading this having similar problems if you want to troubleshoot this on your own. I suggest replacing the connector on all coaxical cables.

Here's the new modem logs:

I had only 1 somtimes 4 bonded upstreams and I have seem the power level on up go as high as 57dB. Now its in the 30-45 range which I read is ideal. Even the downstream changed -3 -4 to -1 which 0 is ideal and range is -15 +15.

Thanks!

Downstream Bonding Channel Value

Channel ID	17	18	19	20	21	22	23	24
Frequency	555000000 Hz	561000000 Hz	567000000 Hz	573000000 Hz	579000000 Hz	585000000 Hz	591000000 Hz	597000000 Hz
Signal to Noise Ratio	37 dB	38 dB	37 dB	38 dB	37 dB	38 dB	38 dB	38 dB
Downstream Modulation	QAM256	QAM256	QAM256	QAM256	QAM256	QAM256	QAM256	QAM256
Power Level The Downstream Power Level reading is a snapshot taken at the time this page was requested. Please Reload/Refresh this Page for a new reading	-2 dBmV	-1 dBmV	-2 dBmV	-2 dBmV	-1 dBmV	-1 dBmV	-1 dBmV	-1 dBmV

Upstream Bonding Channel Value

Channel ID	6	5	7	8
Frequency	24200000 Hz	19400000 Hz	30600000 Hz	37000000 Hz
Ranging Service ID	6282	6282	6282	6282
Symbol Rate	5.120 Msym/sec	2.560 Msym/sec	5.120 Msym/sec	2.560 Msym/sec
Power Level	39 dBmV	38 dBmV	41 dBmV	45 dBmV
Upstream Modulation	[3] QPSK [1] 16QAM [2] 64QAM	[3] QPSK [2] 16QAM	[3] QPSK [1] 16QAM [2] 64QAM	[3] QPSK [3] 16QAM
Ranging Status	Success	Success	Success	Success

Signal Stats (Codewords)Bonding Channel Value

Channel ID	17	18	19	20	21	22	23	24
Total Unerrored Codewords	37274996	36343954	36352847	36361826	36333850	36335024	36336757	36338015
Total Correctable Codewords	1	6	2	1	18	16	21	20
Total Uncorrectable Codewords	552	1291	590	708	1529	1452	834	654

[MsRaye]

the high US and T3-4 errors and resets are probably not caused by ingress but by improper impedance at the splitter causing the isolation to vary.  Splitters only provide rated isolation with proper 75 ohm loads and a noisy one upsets that.

 Yes, a neighbor on the same tapoff can cause DS  ingress, and  anyone anywhere on the node can caus US ingress.

 Glad this is fixed.

 ps. I don't like seeing the 37 mHz upstream channel that high as compared to the 3 others, hopefully you won't have issues.

 Mine look like this: yuck...

Channel ID	34	33	35	36
Frequency	24200000 Hz	19400000 Hz	30600000 Hz	37000000 Hz
Ranging Service ID	15528	15528	15528	15528
Symbol Rate	5.120 Msym/sec	2.560 Msym/sec	5.120 Msym/sec	2.560 Msym/sec
Power Level	49 dBmV	48 dBmV	50 dBmV	51 dBmV

[MsRaye]

the DSL article is old and with digital qam systems, terminators must be used on all unused ports and as I've said many times, get rid of all unneeded splitters.

It also doesn't mention the strong rf fields generated by 4G phones which didn't exist in 2003 and now operate on the 699-866 channels.

 Back in 2003, there was more analog ntsc tv on air, in 2013 all was gone and ATSC digital only. ATSC looks like noise and is harder to detect as ingress and does more damage to the qam signal.

Qam was invented 20 years before ATSC or 3g/4G cellular technology...

[laudium]

Yeah I was doing to reading on that.
Thanks a lot MsRaye!
Thanks to Agent5x, whom I haven't seen in a while. I guess he doesn't want to bump a thread he has all ready given to a lot of help on.
I love you all and I am very happy with TWC.