Intermittent disconnects

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Resident Expert
Resident Expert
Posts: 1,074

Re: Intermittent disconnects


@CWolfCW wrote:
Mississauga (Dundas/Winston Churchill)
So the past few weeks, my housemates and I have been getting random disconnects from the modem. I've tried without my router, resetting the modem, connecting from a separate jack... to no avail. I'm hoping for advice as to what might be the issue.

 

No. Time Type Priority Event
1 02/14/2018 22:43:50 82000200 critical No Ranging Response received - T3 time-out;CMTS-MAC=00:17:10:93:72:23;CM-QOS=1.1;CM-VER=3.1;
2 02/15/2018 00:18:59 68010300 error DHCP RENEW WARNING - Field invalid in response v4 option;CM-QOS=1.1;CM-VER=3.1;
3 02/15/2018 00:45:15 90000000 warning MIMO Event MIMO: Stored MIMO=1 post cfg file MIMO=-1;CM-QOS=1.1;CM-VER=3.1;
4 02/16/2018 23:27:24 82000200 critical No Ranging Response received - T3 time-out;CMTS-MAC=00:17:10:93:72:23;CM-QOS=1.1;CM-VER=3.1;
5 02/17/2018 03:41:02 90000000 warning MIMO Event MIMO: Stored MIMO=1 post cfg file MIMO=-1;CM-QOS=1.1;CM-VER=3.1;
6 02/18/2018 03:41:00 68010300 error DHCP RENEW WARNING - Field invalid in response v4 option;CM-QOS=1.1;CM-VER=3.1;
7 02/18/2018 17:43:56 84020200 warning Lost MDD Timeout;CM-QOS=1.1;CM-VER=3.1;
8 02/21/2018 03:41:01 68010300 error DHCP RENEW WARNING - Field invalid in response v4 option;CMTS-MAC=00:17:10:93:72:23;CM-QOS=1.1;CM-VER=3.1;
9 02/21/2018 15:52:24 82000200 critical No Ranging Response received - T3 time-out;CMTS-MAC=00:17:10:93:72:23;CM-QOS=1.1;CM-VER=3.1;
10 02/25/2018 03:41:02 68010300 error DHCP RENEW WARNING - Field invalid in response v4 option;;CMTS-MAC=00:17:10:93:72:23;CM-QOS=1.1;CM-VER=3.1;
11 02/25/2018 12:44:34 82000200 critical No Ranging Response received - T3 time-out;CMTS-MAC=00:17:10:93:72:23;CM-QOS=1.1;CM-VER=3.1;
12 02/26/2018 03:41:02 68010300 error DHCP RENEW WARNING - Field invalid in response v4 option;CMTS-MAC=00:17:10:93:72:23;CM-QOS=1.1;CM-VER=3.1;
13 02/27/2018 00:35:08 84000500 critical SYNC Timing Synchronization failure - Loss of Sync;CMTS-MAC=00:17:10:93:72:23;CM-QOS=1.1;CM-VER=3.1;
14 02/27/2018 00:35:16 84020200 warning Lost MDD Timeout;CMTS-MAC=00:17:10:93:72:23;CM-QOS=1.1;CM-VER=3.1;
15 02/27/2018 03:41:02 68010300 error DHCP RENEW WARNING - Field invalid in response v4 option;CMTS-MAC=00:17:10:93:72:23;CM-QOS=1.1;CM-VER=3.1;
DOCSIS WAN

This menu displays both upstream and downstream signal parameters

DOCSIS Overview
Network Access Permitted
   
Subnet Mask 255.255.240.0
   
DHCP Lease Time D: 07 H: 00 M: 00 S: 00
Downstream Overview
Port ID Frequency (MHz) Modulation Signal strength (dBmV) Channel ID Signal noise ratio (dB)
1 603000000 256QAM 6.700 9 40.366
2 849000000 256QAM 4.000 2 40.946
3 855000000 256QAM 3.100 3 40.366
4 861000000 256QAM 2.900 4 40.366
5 579000000 256QAM 6.300 5 40.366
6 585000000 256QAM 5.800 6 40.366
7 591000000 256QAM 4.600 7 40.366
8 597000000 256QAM 5.400 8 40.366
9 303000000 256QAM 7.200 1 40.366
10 609000000 256QAM 4.900 10 40.366
11 615000000 256QAM 5.600 11 40.946
12 621000000 256QAM 6.300 12 40.946
13 633000000 256QAM 4.100 13 40.946
14 639000000 256QAM 5.800 14 40.946
15 645000000 256QAM 4.600 15 40.366
16 651000000 256QAM 3.600 16 40.946
17 657000000 256QAM 5.000 17 40.366
18 663000000 256QAM 5.400 18 40.366
19 669000000 256QAM 3.900 19 40.946
20 675000000 256QAM 4.900 20 40.366
21 681000000 256QAM 5.200 21 40.366
22 687000000 256QAM 3.400 22 40.366
23 693000000 256QAM 3.500 23 38.983
24 699000000 256QAM 4.500 24 40.366
25 705000000 256QAM 4.400 25 40.946
26 711000000 256QAM 3.800 26 40.366
27 717000000 256QAM 5.300 27 40.366
28 723000000 256QAM 3.900 28 40.946
29 825000000 256QAM 5.500 29 40.946
30 831000000 256QAM 5.000 30 40.366
31 837000000 256QAM 5.000 31 40.946
32 843000000 256QAM 4.600 32 40.366
OFDM Downstream Overview
Receiver FFT type Subcarr 0 Frequency(MHz) PLC locked NCP locked MDC1 locked PLC power(dBmv)
0 NA NA NO NO NO NA
1 4K 290600000 YES YES YES 7.500000
Upstream Overview
Port ID Frequency (MHz) Modulation Signal strength (dBmV) Channel ID Bandwidth
1 38596000 ATDMA - 64QAM 34.250 3 3200000
2 30596000 ATDMA - 64QAM 30.750 1 6400000
3 23700000 ATDMA - 64QAM 30.250 2 6400000
OFDM/OFDMA Overview
Channel Index State lin Digital Att Digital Att BW (sc's*fft) Report Power Report Power1_6 FFT Size
0 DISABLED 0.5000 0.0000 0.0000 -inf -1.0000 4K
1 DISABLED 0.5000 0.0000 0.0000 -inf -1.0000 4K

@CWolfCW

Your signal levels look good, but all those errors look like it could be an issue with the CMTS. I suggest calling Rogers and ask them to check other people on your Node for any issues. It could be a Node/CMTS issue.

 



I've Been Here Awhile
Posts: 3

Re: Intermittent disconnects

@Datalink

As you might expect, plugging the modem directly into the wall socket did not improve things, I'm still getting randomly disconnected. The following is the information I observed while the connection was down. I included all tables as there appears to be nothing in them worth hiding.

 

DOCSIS Overview
Network Access Process...
IP Address 0.0.0.0
Subnet Mask  
Gateway IP Address  
DHCP Lease Time D: -- H: -- M: -- S: --
Downstream Overview
Port ID Frequency (MHz) Modulation Signal strength (dBmV) Channel ID Signal noise ratio (dB)
1 603000000 256QAM 2.800 9 36.610
5 579000000 256QAM 3.300 0 9.680
6 585000000 256QAM 3.100 0 9.818
7 591000000 256QAM 2.700 0 9.943
9 603000000 256QAM 2.800 0 10.078
10 609000000 256QAM 3.600 0 13.200
OFDM Downstream Overview
Receiver FFT type Subcarr 0 Frequency(MHz) PLC locked NCP locked MDC1 locked PLC power(dBmv)
0 NA NA NO NO NO NA
1 NA NA NO NO NO NA
Upstream Overview
Port ID Frequency (MHz) Modulation Signal strength (dBmV) Channel ID Bandwidth
1 30596000 ATDMA - 64QAM 37.750 1 6400000
OFDM/OFDMA Overview
Channel Index State lin Digital Att Digital Att BW (sc's*fft) Report Power Report Power1_6 FFT Size
0 DISABLED 0.5000 0.0000 0.0000 -inf -1.0000 4K
1 DISABLED 0.5000 0.0000 0.0000 -inf -1.0000 4K

 

 

 

 

 

 

 

The next set of tables is from when the connection was back up, I ommitted some tables that looked like they had info that might let someone identify me:

Downstream Overview
Port ID Frequency (MHz) Modulation Signal strength (dBmV) Channel ID Signal noise ratio (dB)
1 603000000 256QAM 2.700 9 36.610
2 849000000 256QAM 2.000 2 34.926
3 855000000 256QAM 1.900 3 35.084
4 861000000 256QAM 2.200 4 35.084
5 579000000 256QAM 3.300 5 36.610
6 585000000 256QAM 3.100 6 36.610
7 591000000 256QAM 2.600 7 36.387
8 597000000 256QAM 2.400 8 36.387
9 303000000 256QAM -1.500 1 37.636
10 609000000 256QAM 3.600 10 37.356
11 615000000 256QAM 3.000 11 36.387
12 621000000 256QAM 2.600 12 36.610
13 633000000 256QAM 3.500 13 37.356
14 639000000 256QAM 4.000 14 37.356
15 645000000 256QAM 3.600 15 36.610
16 651000000 256QAM 3.400 16 36.610
17 657000000 256QAM 3.200 17 36.610
18 663000000 256QAM 3.900 18 37.356
19 669000000 256QAM 4.100 19 37.356
20 675000000 256QAM 3.400 20 36.610
21 681000000 256QAM 2.800 21 36.387
22 687000000 256QAM 3.000 22 36.387
23 693000000 256QAM 3.100 23 36.610
24 699000000 256QAM 3.300 24 36.387
25 705000000 256QAM 2.600 25 35.780
26 711000000 256QAM 2.300 26 35.780
27 717000000 256QAM 3.000 27 36.387
28 723000000 256QAM 3.400 28 36.387
29 825000000 256QAM 1.500 29 35.084
30 831000000 256QAM 1.800 30 35.084
31 837000000 256QAM 2.000 31 35.084
32 843000000 256QAM 1.700 32 35.084
OFDM Downstream Overview
Receiver FFT type Subcarr 0 Frequency(MHz) PLC locked NCP locked MDC1 locked PLC power(dBmv)
0 NA NA NO NO NO NA
1 4K 290600000 YES YES YES -0.599998
Upstream Overview
Port ID Frequency (MHz) Modulation Signal strength (dBmV) Channel ID Bandwidth
1 38596000 ATDMA - 64QAM 45.750 6 3200000
2 30596000 ATDMA - 64QAM 42.500 4 6400000
3 23700000 ATDMA - 64QAM 40.500 5 6400000
OFDM/OFDMA Overview
Channel Index State lin Digital Att Digital Att BW (sc's*fft) Report Power Report Power1_6 FFT Size
0 DISABLED 0.5000 0.0000 0.0000 -inf -1.0000 4K
1 DISABLED 0.5000 0.0000 0.0000 -inf -1.0000 4K
Resident Expert
Resident Expert
Posts: 6,104

Re: Intermittent disconnects

@Ghost314 did you reboot the modem to get it back to a working state, or did the modem reboot on its own?  

 

Your downstream DOCSIS 3.0 signal levels are ok, as are the signal to noise ratios, the upstream DOCSIS 3.0 signal levels are above the normal levels for this modem (when its running DOCSIS 3.1 on the downstream side).  The upstream levels are still within spec, but, their above the usual 31 to 33 dBmV levels.  That indicates that there is either a cable issue, or perhaps an MDU/CMTS issue.  Typically, in a house installation, as the external cable fails, the modem upstream output increases until the modem hits 51 dBmV for three channel operation.  If the CMTS calls for more power from the modem, the modem will shut down one channel, and run the other two channels with higher power levels.  If that still doesn't work, the modem will shut down another channel, resulting in single channel upstream operation.  When you're in a dual and single channel mode, you will notice it as the data rates will drop.  I wouldn't expect the same for an apartment unless the apartments were connected to an external CMTS, where the cabling is exposed to the elements.  Thats why I was indicating that it would be good to know what your modem is connected to, an internal MDU, or external CMTS.  That also determines what level of tech is required to sort out the problem. 

 

In any event, when you get a drop in service, you should call in to tech support and at the very least log the event on file.  Get enough of those events, and it will gain attention.  Put tech support on speed dial and don't hesitate to use it.  



I've Been Here Awhile
Posts: 3

Re: Intermittent disconnects

Hello,

 

I have been getting disconnects with my Rogers 150u account since I converted in November.  I changed my modem out 2 weeks ago for a white DOCSIS 3.1 one (CODA).  I noticed the same error that occurs on the new modem as the old one when my Internet temporarily disconnects:

 

03/05/2018 23:31:30 90000000 warning

MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=00:17:10:90:e4:83;CM-QOS=1.1;CM-VER=3.1;

 

 

 

Here are my current modem details from the web page.  The colour items are the one constant I can always see which matches up with my internet disconnect time (adjust 5 hours for timezone).

 

DOCSIS Logs

The DOCSIS event logs is shown here

No. Time Type Priority Event
1 03/05/2018 23:29:18 82000200 critical No Ranging Response received - T3 time-out;CM-MAC=90:50:ca:xx:xx:xx;CMTS-MAC=00:17:10:90:e4:83;CM-QOS=1.1;CM-VER=3.1;
2 03/05/2018 23:29:19 84000500 critical SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=90:50:ca:xx:xx:xx;CMTS-MAC=00:17:10:90:e4:83;CM-QOS=1.1;CM-VER=3.1;
3 03/05/2018 23:29:24 82000200 critical No Ranging Response received - T3 time-out;CM-MAC=90:50:ca:xx:xx:xx;CMTS-MAC=00:17:10:90:e4:83;CM-QOS=1.1;CM-VER=3.1;
4 03/05/2018 23:29:25 82000300 critical Ranging Request Retries exhausted;CM-MAC=90:50:ca:xx:xx:xx;CMTS-MAC=00:17:10:90:e4:83;CM-QOS=1.1;CM-VER=3.1;
5 03/05/2018 23:29:25 82000600 critical Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=90:50:ca:xx:xx:xx;CMTS-MAC=00:17:10:90:e4:83;CM-QOS=1.1;CM-VER=3.1;
6 03/05/2018 23:29:32 82000200 critical No Ranging Response received - T3 time-out;CM-MAC=90:50:ca:xx:xx:xx;CMTS-MAC=00:17:10:90:e4:83;CM-QOS=1.1;CM-VER=3.1;
7 03/05/2018 23:29:33 82000300 critical Ranging Request Retries exhausted;CM-MAC=90:50:ca:xx:xx:xx;CMTS-MAC=00:17:10:90:e4:83;CM-QOS=1.1;CM-VER=3.1;
8 03/05/2018 23:29:33 82000600 critical Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=90:50:ca:xx:xx:xx;CMTS-MAC=00:17:10:90:e4:83;CM-QOS=1.1;CM-VER=3.1;
9 03/05/2018 23:29:58 82000400 critical Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=90:50:ca:xx:xx:xx;CMTS-MAC=00:17:10:90:e4:83;CM-QOS=1.1;CM-VER=3.1;
10 03/05/2018 23:30:23 90000000 warning MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1;CM-MAC=90:50:ca:xx:xx:xx;CMTS-MAC=00:17:10:90:e4:83;CM-QOS=1.1;CM-VER=3.1;
11 03/05/2018 23:30:53 82000200 critical No Ranging Response received - T3 time-out;CM-MAC=90:50:ca:xx:xx:xx;CMTS-MAC=00:17:10:90:e4:83;CM-QOS=1.1;CM-VER=3.1;
12 03/05/2018 23:30:54 82000300 critical Ranging Request Retries exhausted;CM-MAC=90:50:ca:xx:xx:xx;CMTS-MAC=00:17:10:90:e4:83;CM-QOS=1.1;CM-VER=3.1;
13 03/05/2018 23:30:54 82000600 critical Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=90:50:ca:xx:xx:xx;CMTS-MAC=00:17:10:90:e4:83;CM-QOS=1.1;CM-VER=3.1;
14 03/05/2018 23:30:54 82000300 critical Ranging Request Retries exhausted;CM-MAC=90:50:ca:xx:xx:xx;CMTS-MAC=00:17:10:90:e4:83;CM-QOS=1.1;CM-VER=3.1;
15 03/05/2018 23:30:54 82000600 critical Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=90:50:ca:xx:xx:xx;CMTS-MAC=00:17:10:90:e4:83;CM-QOS=1.1;CM-VER=3.1;
16 03/05/2018 23:31:01 82000200 critical No Ranging Response received - T3 time-out;CM-MAC=90:50:ca:xx:xx:xx;CMTS-MAC=00:17:10:90:e4:83;CM-QOS=1.1;CM-VER=3.1;
17 03/05/2018 23:31:02 82000300 critical Ranging Request Retries exhausted;CM-MAC=90:50:ca:xx:xx:xx;CMTS-MAC=00:17:10:90:e4:83;CM-QOS=1.1;CM-VER=3.1;
18 03/05/2018 23:31:02 82000600 critical Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=90:50:ca:xx:xx:xx;CMTS-MAC=00:17:10:90:e4:83;CM-QOS=1.1;CM-VER=3.1;
19 03/05/2018 23:31:30 90000000 warning MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1;CM-MAC=90:50:ca:xx:xx:xx;CMTS-MAC=00:17:10:90:e4:83;CM-QOS=1.1;CM-VER=3.1;
20 03/05/2018 23:33:23 82000200 critical No Ranging Response received - T3 time-out;CM-MAC=90:50:ca:xx:xx:xx;CMTS-MAC=00:17:10:90:e4:83;CM-QOS=1.1;CM-VER=3.1;

 

 

DOCSIS WAN

This menu displays both upstream and downstream signal parameters

DOCSIS Overview
Network Access Permitted
IP Address 7.x.x.x
Subnet Mask 255.255.240.0
Gateway IP Address 7.x.x.x
DHCP Lease Time D: 06 H: 23 M: 58 S: 54
Downstream Overview
Port ID Frequency (MHz) Modulation Signal strength (dBmV) Channel ID Signal noise ratio (dB)
1 615000000 256QAM 0.600 11 37.356
2 849000000 256QAM -3.400 2 36.387
3 855000000 256QAM -3.300 3 36.387
4 861000000 256QAM -2.700 4 36.387
5 579000000 256QAM 0.100 5 36.610
6 585000000 256QAM 0.500 6 37.356
7 591000000 256QAM 0.400 7 36.610
8 597000000 256QAM 0.600 8 37.356
9 603000000 256QAM 1.000 9 37.356
10 609000000 256QAM 1.100 10 37.356
11 303000000 256QAM -1.000 1 36.387
12 621000000 256QAM 0.200 12 37.356
13 633000000 256QAM 0.100 13 37.356
14 639000000 256QAM 0.500 14 36.610
15 645000000 256QAM 1.000 15 37.356
16 651000000 256QAM 1.500 16 37.356
17 657000000 256QAM 1.500 17 37.356
18 663000000 256QAM 1.700 18 36.610
19 669000000 256QAM 2.400 19 37.636
20 675000000 256QAM 2.100 20 37.356
21 681000000 256QAM 1.800 21 36.610
22 687000000 256QAM 1.100 22 36.610
23 693000000 256QAM 0.200 23 36.610
24 699000000 256QAM -0.100 24 36.610
25 705000000 256QAM -0.600 25 37.636
26 711000000 256QAM -1.300 26 36.610
27 717000000 256QAM -1.500 27 36.387
28 723000000 256QAM -1.100 28 36.610
29 825000000 256QAM 1.200 29 37.356
30 831000000 256QAM -0.800 30 36.610
31 837000000 256QAM -2.700 31 36.610
32 843000000 256QAM -3.300 32 36.387
OFDM Downstream Overview
Receiver FFT type Subcarr 0 Frequency(MHz) PLC locked NCP locked MDC1 locked PLC power(dBmv)
0 NA NA NO NO NO NA
1 4K 290600000 YES YES YES -0.299999
Upstream Overview
Port ID Frequency (MHz) Modulation Signal strength (dBmV) Channel ID Bandwidth
1 30596000 ATDMA - 64QAM 34.750 1 6400000
2 38596000 ATDMA - 64QAM 38.750 3 3200000
3 23700000 ATDMA - 64QAM 34.000 2 6400000
OFDM/OFDMA Overview
Channel Index State lin Digital Att Digital Att BW (sc's*fft) Report Power Report Power1_6 FFT Size
0 DISABLED 0.5000 0.0000 0.0000 -inf -1.0000 4K
1 DISABLED 0.5000 0.0000 0.0000 -inf -1.0000 4K

 

Nothing looks particularly off, and the speed is great.  Just these disconnects keep happening and I want to know what to push for when I call tech support.

 

When I called and changed my modem they said my area was clean and my internet connection looked solid, but they did admit it was odd to have these errors in my logs.   New modem was step one to see if it was invovled.  My old modem was a black one and I have had it for a couple years without issue.  

 

This seems to have occured after changing from 100u to 150u package.

 

Thank you!

 

***Edited: Removed CM MAC address***

Moderator
Moderator
Posts: 665

Re: Intermittent disconnects

Hello @juched,

 

Thanks for your post and welcome to the Rogers Community Forums!

 

These type of intermittent disconnects can get super annoying over time especially if it ends up interrupting important work you are doing online. =(

 

The signal levels you provided look great everything seems to be in order so these disconnects are very odd! Does it always happen at the same time or does it happen randomly but always with that error in your event logs? Do you have your modem connected to power via a power bar or is it connected directly to the outlet?

 

Keep us posted!

 

RogersTony

 

 

I've Been Here Awhile
Posts: 3

Re: Intermittent disconnects

Hello and thank you.

This doesn’t happen at the same time it randomly. Sometimes it takes days and other times it happens multiple times in one day.

When it does happen I check the logs and see the MiMo message.

The cable modem is plugged in to a battery UPS and wasn’t a problem for 2 years until I changed to 150u. Odd.
Moderator
Moderator
Posts: 845

Re: Intermittent disconnects

Hello @juched,

 

Thanks for the update! We may need to escalate a ticket to our engineering teams to investigate this fully and see what is causing this issue. We'd also like to run a few tests on our end and may have a few followup questions once everything has been tested out on our end.

 

We'll need to gain access to your account to get started on this. Please send us a Private Message @CommunityHelps so we can take a closer look. For more information on our private Messaging system please Click Here.

 

We look forward to hearing from you Robot Happy!

 

 

 

 

RogersZia

 

I've Been Around
Posts: 1

Re: Intermittent disconnects

Internet signal cutting out every 15-20 minutes for 1-2 minutes

 

Anyone experiencing their internet cutting out every 15-20 minutes for a few minutes? It started in the last few weeks. I have my computer plugged right into the rogers modem for fast speed but now I get cutoff very now and then. When I do I check the modem and all the lights are on and working.

 

I also have BELL internet in the house for the kids. I don’t think Rogers is worth it for $105.08 a month for 100u service if they can’t even keep it going for longer than 15 minutes. If it doesn’t get fixed I plan on cancelling. It’s my last Rogers service and I’ll never go back.

Resident Expert
Resident Expert
Posts: 6,104

Re: Intermittent disconnects

@ddragon have you called tech support to report the issue?  That sounds like the external cable is failing.  It would be much easier if it simply failed, as it would make troubleshooting much easier.  If you can get thru to tech support while the internet service is out, that is the best time to call.  It sounds like the modem is probably rebooting, attempting to reestablish communications with the Cable Modem Termination System (CMTS).  If so, you might not have time to contact tech support, but, its worth trying, and you should definitely report this to tech support.  Put them on speed dial and don't hesitate to use it.  In the mean time, can you log into the modem, navigate to the STATUS .... DOCSIS WAN tab, copy the Downstream and Upstream table and paste that into a post.  The copy and paste process will paste in the text contents of the table.  Ignore the data that sits above the Downstream table as that modem specific and shouldn't be posted in an open forum.

 

Are you aware that Bell is rolling out symmetrical service?  Looks like their current internet users are seeing upgrades in speeds as well as implementation of symmetrical download/upload rates, without any notice to the upgraded users.  Fwiw......

 

http://www.dslreports.com/forum/r31862917-Internet-Symmetrical-speed-is-back

 



I've Been Here Awhile
Posts: 2

Re: Intermittent disconnects

Ottawa (Nepean)

 

I've been having issues with intermittent disconnecting several times a day for the past few weeks. My modem model name is CGN3ACSMR and I live in a detached house. The disconnects happens on Wifi as well as Ethernet-connected devices. It always comes back up within a couple minutes so I never have time to call support to see what it looks like on their end. I had a similar problem six months ago and swapped the modem and things were good for a while, but now they've started getting bad again. I rarely use cable TV but a few times in the past couple weeks I've noticed pixellation of the signal, although I haven't found any correlation between that and the disconnects.

 

Any help would be much appreciated (in fact, the Internet just went down again right when I tried to post this the first time!). Here are my downstream/upstream overviews:

 

Downstream Overview
Port IDFrequency (MHz)ModulationSignal strength (dBmV)Channel IDSignal noise ratio (dB)
1621000000256QAM3.7001240.366
2579000000256QAM2.600540.366
3585000000256QAM1.900640.366
4591000000256QAM1.900740.366
5597000000256QAM2.300840.366
6603000000256QAM2.400940.366
7609000000256QAM2.4001040.366
8615000000256QAM3.5001140.946
9303000000256QAM1.800140.366
10633000000256QAM4.4001340.366
11639000000256QAM4.4001440.366
12645000000256QAM3.8001540.946
13651000000256QAM3.9001640.366
14657000000256QAM3.8001740.366
15663000000256QAM3.7001840.946
16669000000256QAM4.4001940.946
17675000000256QAM3.8002040.366
18681000000256QAM3.4002140.366
19687000000256QAM4.2002240.946
20693000000256QAM4.3002340.946
21699000000256QAM3.9002440.366
22705000000256QAM4.2002540.946
23711000000256QAM4.8002640.946
24717000000256QAM4.9002740.366
Upstream Overview
Port IDFrequency (MHz)ModulationSignal strength (dBmV)Channel IDBandwidth
130596000ATDMA - 64QAM44.75016400000
238596000ATDMA - 64QAM45.25033200000
323700000ATDMA - 64QAM45.00026400000