Intermittent disconnects

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I Plan to Stick Around
Posts: 8

Re: Intermittent disconnects

Hi Gdkitty,

 

Thanks for following up. No, there is no drop during the bad times; the strength is indeed fairly consistent across all the channels, and in both good and bad times. 

 

I've read something about "CMTS" issues but I don't know enough to say whether it is perhaps related to my woes.

 

Sam

Resident Expert
Resident Expert
Posts: 13,673

Re: Intermittent disconnects

The CMTS is something at the local head end.. sort of where the modem registers to.

There have been CMTS changes recently, with them changing to CASA instead of cisco.. but generally shouldnt be causing what your happening.

 

Unless its just droping the registration or something.. that the cmts is having issues in that way.



I Plan to Stick Around
Posts: 8

Re: Intermittent disconnects

Thanks again Gdkitty. I picked up a Cisco modem this afternoon, so let's see if it can fair better than the two Hitron misses I've had thus far.

I Plan to Stick Around
Posts: 20

Re: Intermittent disconnects

Hey @Datalink sorry for the late reply. It suddenly stopped not working! Smiley Happy Unofrtuntely for the past week it's been off and on again (not as badly but more than normal I would think)

 

Ever since then, my roll-off has been better on the downstream, reaching 300ish Mhz vs. 621. Upstream is still low as you said, hovering around 30-33 dBmV range. This correlates with a few changes I made to the wiring sytem in my house. I haven't changed the actual wire, but I have replaced a few splitters which were unknowlingly in positions that were better catered to couplers (I used splitters for those instead of couplers) Silver ones if that make any difference. That obviously changed my timeout situation for the better, but not my upstream.

 

I have an old splitter (only one now) that is rated at 5-1000Mhz. Is that sufficent or should I be looking at higher ones of the 2Ghz range? It's also silver plated vs the gold I'm seeing at Best Buy and the Source. So far it's good! But if it comes back, I might look into the actual cable replacement and a tech visit. Thanks in advance again.

I've Been Here Awhile
Posts: 2

Re: Intermittent disconnects

Hello,

 

Exact same problem for me as well, my internet have been disconnecting atleast 3-4 times a day and it last for roughly 30 secs. I have swopped modem and the samething is still happening. I nothiced this issue occured when there was a issue with Rogers back on October 27 (case number C116716310). I called Tech 3 times and they couldnt find any issue but to tell me to unplug the modem. I live in a Condo, so I guess the lines run accross the whole building. 

 

I have the CGN3ROG router and here is my log ( not sure what it means), hopefully someone can shine a light.

 

Thanks

 

Downstream Overview
Port IDFrequency (MHz)ModulationSignal strength (dBmV)Signal noise ratio (dB)Channel ID
1591000000256QAM-7.30037.63631
2363000000256QAM-6.60037.63610
3369000000256QAM-6.50037.35611
4375000000256QAM-6.40037.63612
5381000000256QAM-6.30037.35613
6387000000256QAM-6.90037.63614
7393000000256QAM-7.50037.35615
8399000000256QAM-7.30037.63616
9405000000256QAM-7.60037.35617
10411000000256QAM-7.30037.35618
11417000000256QAM-7.20037.63619
12423000000256QAM-7.30037.35620
13429000000256QAM-6.40037.35621
14435000000256QAM-5.80037.63622
15441000000256QAM-6.30037.63623
16447000000256QAM-6.60037.35624
17555000000256QAM-5.30037.63625
18561000000256QAM-5.80037.63626
19567000000256QAM-5.70037.35627
20573000000256QAM-5.70037.35628
21579000000256QAM-6.40037.35629
22585000000256QAM-6.50037.63630
23357000000256QAM-6.90036.6109
24597000000256QAM-6.80037.35632
Upstream Overview
Port IDFrequency (MHz)BandWidthModulation TypeSignal Strength (dBmV)Channel ID
1305960006400000ATDMA46.0001
299999846400000ATDMA51.000---
399999846400000ATDMA50.250---
Resident Expert
Resident Expert
Posts: 13,673

Re: Intermittent disconnects

While your signal is a little on the low side, they are technically not out of spec..
But they do still look a bit out of wack.. 

 

That it lists 3 upstream channels... but the channel ID and frequency is out of wack.

This is definately something you will need to call in and have a tech sent out.



I've Been Here Awhile
Posts: 2

Re: Intermittent disconnects

I am trying to figure out what is causing my modem go through these changes... for some reason during certain hours .. there isn't a specific time frame the modem stats spike and there is a big difference in variation .

 

When the jumps happen my internet starts behaving differently, and more t3 errors start showing up in my modem log and hiccups in the internet where things dont load.

 

 

Yesterday:

Downstream Overview

Port ID Frequency (MHz) Modulation Signal strength (dBmV) Channel ID Signal noise ratio (dB)
1 693000000 256QAM -1.200 47 39.636
2 363000000 256QAM -1.300 10 40.946
3 369000000 256QAM 1.700 11 40.946
4 375000000 256QAM 1.400 12 40.366
5 381000000 256QAM 1.200 13 40.366
6 387000000 256QAM 1.200 14 40.366
7 393000000 256QAM -1.300 15 40.366
8 399000000 256QAM -1.600 16 40.946
9 405000000 256QAM -1.800 17 40.266
10 411000000 256QAM -1.100 18 40.946
11 417000000 256QAM -1.500 19 40.466
12 423000000 256QAM 1.700 20 40.566
13 429000000 256QAM 1.800 21 40.466
14 435000000 256QAM 1.900 22 40.946
15 441000000 256QAM 1.100 23 40.946
16 447000000 256QAM -1.500 24 40.946
17 555000000 256QAM -1.300 25 38.936
18 561000000 256QAM -1.200 26 37.356
19 567000000 256QAM -0.900 27 37.636
20 573000000 256QAM -0.800 28 37.636
21 681000000 256QAM 1.100 45 37.636
22 687000000 256QAM 0.100 46 37.636
23 357000000 256QAM 0.700 9 40.366
24 699000000 256QAM 1.500 48 39.356

 

 

Today:

Downstream Overview

Port ID Frequency (MHz) Modulation Signal strength (dBmV) Channel ID Signal noise ratio (dB)
1 693000000 256QAM 2.300 47 37.636
2 363000000 256QAM 3.700 10 40.946
3 369000000 256QAM 3.700 11 40.946
4 375000000 256QAM 3.700 12 40.366
5 381000000 256QAM 4.000 13 40.366
6 387000000 256QAM 4.200 14 40.366
7 393000000 256QAM 4.300 15 40.366
8 399000000 256QAM 4.600 16 40.946
9 405000000 256QAM 4.800 17 40.366
10 411000000 256QAM 5.100 18 40.946
11 417000000 256QAM 5.500 19 40.366
12 423000000 256QAM 5.700 20 40.366
13 429000000 256QAM 5.800 21 40.366
14 435000000 256QAM 6.000 22 40.946
15 441000000 256QAM 6.100 23 40.946
16 447000000 256QAM 6.500 24 40.946
17 555000000 256QAM -1.300 25 37.636
18 561000000 256QAM -1.200 26 37.356
19 567000000 256QAM -0.900 27 37.636
20 573000000 256QAM -0.800 28 37.636
21 681000000 256QAM 2.100 45 37.636
22 687000000 256QAM 2.100 46 37.636
23 357000000 256QAM 3.700 9 40.366
24 699000000 256QAM 2.500 48 37.356

 

Upstream seems pretty consistent on both days:

Upstream Overview

Port ID Frequency (MHz) Modulation Signal strength (dBmV) Channel ID BandWidth
1 23700000 ATDMA - 64QAM 44.500 2 6400000
2 38596000 ATDMA - 64QAM 46.250 3 3200000
3 30596000 ATDMA - 64QAM 44.500 1 6400000
Resident Expert
Resident Expert
Posts: 13,673

Re: Intermittent disconnects

Both of those are within spec.. and still pretty close to the good point.. that i wouldnt think that DIRECTLY is the issue your having.  Its only when you start getting close to/above +/- 10 that you really start seeing a bunch.

Question is, what is causing the varriance?

Does this happen randomly durring the day? Or does it seem to happen more at a specific time?

Randomly.. could be something like the connector outside the house is going (with the weather, etc).

More specific times.. i am guessing its more of an area issue.  When more people are on, etc.. that something cang handle the strain, and then your seeing signal changes... as well as possible OTHER issues at the local node, etc possibly, which may be causing the problems.



I've Been Here Awhile
Posts: 2

Re: Intermittent disconnects


Gdkitty wrote:

Both of those are within spec.. and still pretty close to the good point.. that i wouldnt think that DIRECTLY is the issue your having.  Its only when you start getting close to/above +/- 10 that you really start seeing a bunch.

Question is, what is causing the varriance?

Does this happen randomly durring the day? Or does it seem to happen more at a specific time?

Randomly.. could be something like the connector outside the house is going (with the weather, etc).

More specific times.. i am guessing its more of an area issue.  When more people are on, etc.. that something cang handle the strain, and then your seeing signal changes... as well as possible OTHER issues at the local node, etc possibly, which may be causing the problems.


From what I have gathered, it seems to happen between 2-7 sometimes 9 and the stats drop off again to "norm"

But on lets say weekends i've had it all day until midnight .

 

So it could be an "area" issue , or maybe something going on at the tap, 

 

They are within spec, but there is a variance between the lower to highest and back down.. like some channels jump and others remain .

 

I don't know to be honest.. there have been periodic slow down and ping spikes but nothing huge

 

I've Been Here Awhile
Posts: 2

Re: Intermittent disconnects

I am also having similar issue, my wifi for 2.4/5g is very unstable. Below is the event log, not sure what they mean, but i see alot of "errors", "no range response". I got a tech coming this friday, but does anyone know whats going on in the mean time? Thanks

 

NoTimetypePriorityEvent
112/13/16 21:19:4882000200criticalNo Ranging Response received - T3 time-out;CM-MAC=78:8d:f7:af:68:c0;CMTS-MAC=00:17:10:93:71:0e;CM-QOS=1.1;CM-VER=3.0;
212/13/16 21:19:4882000300criticalRanging Request Retries exhausted;CM-MAC=78:8d:f7:af:68:c0;CMTS-MAC=00:17:10:93:71:0e;CM-QOS=1.1;CM-VER=3.0;
312/13/16 21:19:4882000600criticalUnicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=78:8d:f7:af:68:c0;CMTS-MAC=00:17:10:93:71:0e;CM-QOS=1.1;CM-VER=3.0;
412/13/16 21:19:4882000300criticalRanging Request Retries exhausted;CM-MAC=78:8d:f7:af:68:c0;CMTS-MAC=00:17:10:93:71:0e;CM-QOS=1.1;CM-VER=3.0;
512/13/16 21:19:4982000600criticalUnicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=78:8d:f7:af:68:c0;CMTS-MAC=00:17:10:93:71:0e;CM-QOS=1.1;CM-VER=3.0;
612/13/16 21:19:4982000300criticalRanging Request Retries exhausted;CM-MAC=78:8d:f7:af:68:c0;CMTS-MAC=00:17:10:93:71:0e;CM-QOS=1.1;CM-VER=3.0;
712/13/16 21:19:4982000600criticalUnicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=78:8d:f7:af:68:c0;CMTS-MAC=00:17:10:93:71:0e;CM-QOS=1.1;CM-VER=3.0;
812/13/16 21:20:3282000200criticalNo Ranging Response received - T3 time-out;CM-MAC=78:8d:f7:af:68:c0;CMTS-MAC=00:17:10:93:71:0e;CM-QOS=1.1;CM-VER=3.0;
912/13/16 21:23:4690000000warningMIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1;CM-MAC=78:8d:f7:af:68:c0;CMTS-MAC=00:17:10:93:71:0e;CM-QOS=1.1;CM-VER=3.0;
1012/17/16 07:44:0282000200criticalNo Ranging Response received - T3 time-out;CM-MAC=78:8d:f7:af:68:c0;CMTS-MAC=00:17:10:93:71:0e;CM-QOS=1.1;CM-VER=3.0;
1112/17/16 08:58:0668010300errorDHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=78:8d:f7:af:68:c0;CMTS-MAC=00:17:10:93:71:0e;CM-QOS=1.1;CM-VER=3.0;
1212/18/16 03:25:0082000200criticalNo Ranging Response received - T3 time-out;CM-MAC=78:8d:f7:af:68:c0;CMTS-MAC=00:17:10:93:71:0e;CM-QOS=1.1;CM-VER=3.0;
1312/18/16 08:58:0668010300errorDHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=78:8d:f7:af:68:c0;CMTS-MAC=00:17:10:93:71:0e;CM-QOS=1.1;CM-VER=3.0;
1412/19/16 08:36:1782000200criticalNo Ranging Response received - T3 time-out;CM-MAC=78:8d:f7:af:68:c0;CMTS-MAC=00:17:10:93:71:0e;CM-QOS=1.1;CM-VER=3.0;
1512/19/16 08:58:0768010300errorDHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=78:8d:f7:af:68:c0;CMTS-MAC=00:17:10:93:71:0e;CM-QOS=1.1;CM-VER=3.0;
1612/19/16 22:21:0582000200criticalNo Ranging Response received - T3 time-out;CM-MAC=78:8d:f7:af:68:c0;CMTS-MAC=00:17:10:93:71:0e;CM-QOS=1.1;CM-VER=3.0;
1712/20/16 02:16:3684020200warningLost MDD Timeout;CM-MAC=78:8d:f7:af:68:c0;CMTS-MAC=00:17:10:93:71:0e;CM-QOS=1.1;CM-VER=3.0;
1812/20/16 05:40:0482000200criticalNo Ranging Response received - T3 time-out;CM-MAC=78:8d:f7:af:68:c0;CMTS-MAC=00:17:10:93:71:0e;CM-QOS=1.1;CM-VER=3.0;
1912/20/16 08:58:0868010300errorDHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=78:8d:f7:af:68:c0;CMTS-MAC=00:17:10:93:71:0e;CM-QOS=1.1;CM-VER=3.0;
2012/20/16 15:42:2482000200criticalNo Ranging Response received - T3 time-out;CM-MAC=78:8d:f7:af:68:c0;CMTS-MAC=00:17:10:93:71:0e;CM-QOS=1.1;CM-VER=3.0;