Intermittent disconnects - CODA-4582U

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giga1
I'm Here A Lot
Posts: 6

Re: Intermittent disconnects - CODA-4582U

a few days ago it was really-really bad with these disconnects, almost every hour, 6-7 min down.

called again Rogers support and they mentioned a wider outage in my area. Fixing that took almost whole day.

after this repair things are working way better. there still are disconnects but these last a few seconds and i never notice them. a script i have running on a server checks every 5 seconds and logs internet disconnects, based on this i know there still are some minor issues but i can live with these.

for other users still facing this issue: if you have cable modem on bridge mode, change it to gateway. It doesn't fix the issue but at least you can ping 8.8.8.8 from cable modem web interface and show Rogers support that cable modem is disconnected when outage occurs. it pinpoints to Rogers device or upstream cable infrastructure.

MrJames
I Plan to Stick Around
Posts: 9

Re: Intermittent disconnects - CODA-4582U

I received the new technicolour modem as part of upgrading to the new Ignite.

Zero problems since.

 

AP7
I've Been Here Awhile
Posts: 2

Re: Intermittent disconnects - CODA-4582U

Hi there,

 

Help pls .. Home internet doprs/Flaps every few hours .. Coda modem has errors on DOCSIS Events. I hope to get some help here. i have had Rogers highspeed internet 1gbps since we few years and it has worked perfect. however since last March 2020, internet has been really bad. it disconnects multiple times a day, and sometime also needs router restart. Endless tickets with Rogers, 4-5 tech visits, cable replaced, splitter replaced, Coda modem replaced but no vain. it got a little better but still flaps a few times a day. sometime multiple times in an hour. i normally attend important online meetings on LTE to avoid being dropped of home internet.

 

here are my coda modem stats and DOCSIS .. any expert help would be highly appreciated.

 

note - i always see following errors on DOCSIS Events

 

RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=CMTS-MAC=00:17:10:9a:4f:30;CM-QOS=1.1;CM-VER=3.1;

 

System Information

This menu displays general information of the device

 

Hardware Version 1A
Software Version 7.1.1.33
Gateway Serial Number ***
HFC MAC Address ***
System Time 2021-02-24 11:27:37
Time Zone UTC-05:00 Eastern Time(US & Canada)
LAN Up Time 000 day 00h:28m:12s

 

DOCSIS Provisioning

This menu displays the connectivity status of the modem and its boot state

HW init Success
Find Downstream Success
Ranging Success
DHCP Success
Time of Day Success
Download CM Config File Success
Registration Success
EAE status Disable
BPI status AUTH:start, TEK:start

 

DOCSIS WAN

This menu displays both upstream and downstream signal parameters

DOCSIS Overview
Network Access Permitted
IP Address  
Subnet Mask 255.255.252.0
Gateway IP Address 7.13.60.1
DHCP Lease Time 😧 6 H: 23 M: 02 S: 04
Downstream Overview
Port ID Frequency (MHz) Modulation Signal strength (dBmV) Channel ID Signal noise ratio (dB)
1 591000000 QAM256 -7.599 7 37.636
2 597000000 QAM256 -7.900 8 37.636
3 603000000 QAM256 -7.799 9 38.605
4 849000000 QAM256 -11.900 2 35.779
5 855000000 QAM256 -11.799 3 35.779
6 861000000 QAM256 -11.299 4 36.386
7 579000000 QAM256 -8.000 5 37.636
8 585000000 QAM256 -7.799 6 37.636
9 279000000 QAM256 -2.599 1 38.983
10 609000000 QAM256 -7.400 10 38.605
11 615000000 QAM256 -7.299 11 37.636
12 621000000 QAM256 -7.299 12 38.605
13 633000000 QAM256 -7.099 13 38.605
14 639000000 QAM256 -6.900 14 38.605
15 645000000 QAM256 -7.099 15 37.636
16 651000000 QAM256 -7.400 16 37.636
17 657000000 QAM256 -7.400 17 37.636
18 663000000 QAM256 -7.099 18 38.605
19 669000000 QAM256 -7.000 19 38.605
20 675000000 QAM256 -7.000 20 38.605
21 681000000 QAM256 -7.000 21 38.605
22 687000000 QAM256 -7.400 22 38.605
23 693000000 QAM256 -7.500 23 38.605
24 699000000 QAM256 -7.599 24 37.636
25 705000000 QAM256 -8.099 25 37.636
26 711000000 QAM256 -8.900 26 37.636
27 717000000 QAM256 -9.099 27 37.355
28 723000000 QAM256 -8.799 28 37.636
29 825000000 QAM256 -11.400 29 35.779
30 831000000 QAM256 -11.099 30 36.386
31 837000000 QAM256 -11.299 31 36.386
32 843000000 QAM256 -11.599 32 35.595
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 275600000 YES YES YES -3.900002
Upstream Overview
Port ID Frequency (MHz) Modulation Signal strength (dBmV) Channel ID Bandwidth
1 38700000 64QAM 41.770 4 6400000
2 21100000 64QAM 43.260 1 3200000
3 32300000 64QAM 42.770 3 6400000
4 25900000 64QAM 43.020 2 6400000
5 0 QAM_NONE - --- 1600000
6 0 QAM_NONE - --- 1600000
7 0 QAM_NONE - --- 1600000
8 0 QAM_NONE - --- 1600000
OFDM/OFDMA Overview
Channel Index State lin Digital Att Digital Att BW (sc's*fft) Report Power Report Power1_6 FFT Size
0 DISABLED 0.0000 0.0000 0.0000 0.0000 0.0000 2K
1 DISABLED 0.0000 0.0000 0.0000 0.0000 0.0000 2K

 

DOCSIS Logs

The DOCSIS event logs are shown here

No. Time Type Priority Event
1 02/24/2021 10:56:47 82000200 Critical No Ranging Response received - T3 time-out;CM-MAC=;CMTS-MAC=00:17:10:9a:4f:30;CM-QOS=1.1;CM-VER=3.1;
2 02/24/2021 10:56:47 82001200 Warning RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=;CMTS-MAC=00:17:10:9a:4f:30;CM-QOS=1.1;CM-VER=3.1;
3 02/24/2021 10:56:47 74010100 Notice CM-STATUS message sent. Event Type Code: 2; Chan ID: 8; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=;CMTS-MAC=00:17:10:9a:4f:30;CM-QOS=1.1;CM-VER=3.1;
4 02/24/2021 10:56:51 82000200 Critical No Ranging Response received - T3 time-out;CM-MAC=;CMTS-MAC=00:17:10:9a:4f:30;CM-QOS=1.1;CM-VER=3.1;
5 02/24/2021 10:56:52 84020200 Warning Lost MDD Timeout;CM-MAC=90:50:ca:1c:71:60;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
6 02/24/2021 10:56:53 74010100 Notice CM-STATUS message sent. Event Type Code: 1; Chan ID: 8; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=CMTS-MAC=00:17:10:9a:4f:30;CM-QOS=1.1;CM-VER=3.1;
7 02/24/2021 10:56:54 82001100 Warning RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=;CMTS-MAC=00:17:10:9a:4f:30;CM-QOS=1.1;CM-VER=3.1;
8 02/24/2021 10:56:55 82000200 Critical No Ranging Response received - T3 time-out;CM-MAC=60;CMTS-MAC=00:17:10:9a:4f:30;CM-QOS=1.1;CM-VER=3.1;
9 02/24/2021 10:56:55 82001200 Warning RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=CMTS-MAC=00:17:10:9a:4f:30;CM-QOS=1.1;CM-VER=3.1;
10 02/24/2021 10:57:14 82001100 Warning RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=;CMTS-MAC=00:17:10:9a:4f:30;CM-QOS=1.1;CM-VER=3.1;
11 02/24/2021 10:57:17 82000200 Critical No Ranging Response received - T3 time-out;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
12 02/24/2021 10:57:35 82000400 Critical Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=CMTS-MAC=00:17:10:9a:4f:30;CM-QOS=1.1;CM-VER=3.1;
13 02/24/2021 10:57:36 74010100  
augmentium
I Plan to Stick Around
Posts: 37

Re: Intermittent disconnects - CODA-4582U

Ever since the OFDMA was disabled a few weeks ago,  had no disconnects and been able to login to the router at 192.168.100.1 without a problem (it's in bridge mode).  Until today!  I don't want to reboot the modem in case I jinx things.  Anybody got any advice on how to access the modem?

spruce_moose
I've Been Here Awhile
Posts: 3

Re: Intermittent disconnects - CODA-4582U

I’m also having a very similar issue and customer support doesn’t see an issue and is trying to upsell me ignite. I’d pay it if I knew it would fix it. I have legacy gigabit and I bridge my 4582U into my Orbi RBR50. My issue occurs with both Ethernet and WiFi.  This last month Microsoft teams has been unusable with frequent brief disconnections usually from 3-8 seconds occurring frequently. I’ve also recently tried playing some PS5 and keep getting disconnected as well. What’s weird is I don’t see the drop when I'm pinging Google at the same time. I can stream movies / YouTube without issue. I’m really at a loss. Any suggestions?

spruce_moose
I've Been Here Awhile
Posts: 3

Re: Intermittent disconnects - CODA-4582U

I just tried again with pingplotter and didn't receive any drops when I had the issue. I've reset the modem to factory default and will see if it is reproducible with only a single device connected.

Downstream Overview
Port ID Frequency (MHz) Modulation Signal strength (dBmV) Channel ID Signal noise ratio (dB)
1 591000000 QAM256 2.299 7 38.983
2 597000000 QAM256 2.400 8 38.605
3 603000000 QAM256 2.099 9 38.605
4 855000000 QAM256 0.400 3 35.595
5 861000000 QAM256 0.200 4 35.779
6 579000000 QAM256 2.299 5 38.605
7 585000000 QAM256 2.400 6 38.983
8 849000000 QAM256 0.900 2 36.386
9 609000000 QAM256 2.099 10 37.636
10 615000000 QAM256 2.299 11 37.355
11 621000000 QAM256 2.700 12 37.636
12 633000000 QAM256 3.099 13 38.605
13 639000000 QAM256 3.000 14 37.636
14 645000000 QAM256 3.099 15 37.636
15 651000000 QAM256 3.000 16 37.636
16 657000000 QAM256 2.900 17 37.355
17 663000000 QAM256 3.000 18 37.355
18 669000000 QAM256 3.099 19 38.605
19 675000000 QAM256 3.200 20 37.636
20 681000000 QAM256 2.799 21 38.605
21 687000000 QAM256 2.099 22 37.355
22 693000000 QAM256 2.000 23 37.355
23 699000000 QAM256 1.599 24 37.355
24 705000000 QAM256 1.400 25 37.355
25 711000000 QAM256 1.500 26 37.355
26 717000000 QAM256 1.799 27 37.355
27 723000000 QAM256 1.500 28 37.355
28 825000000 QAM256 1.000 29 36.386
29 831000000 QAM256 1.099 30 36.386
30 837000000 QAM256 1.400 31 36.386
31 843000000 QAM256 1.200 32 36.386
32 279000000 QAM256 4.000 1 37.636
OFDM Downstream Overview
Receiver FFT type Subcarr 0 Frequency(MHz) PLC locked NCP locked MDC1 locked PLC power(dBmv)
0 4K 275600000 YES YES YES 3.900002
1 NA NA NO NO NO NA
Upstream Overview
Port ID Frequency (MHz) Modulation Signal strength (dBmV) Channel ID Bandwidth
1 21100000 64QAM 40.010 1 3200000
2 38700000 64QAM 41.020 4 6400000
3 32300000 64QAM 41.020 3 6400000
4 25900000 64QAM 41.020 2 6400000
5 0 QAM_NONE - --- 1600000
6 0 QAM_NONE - --- 1600000
7 0 QAM_NONE - --- 1600000
8 0 QAM_NONE - --- 1600000
OFDM/OFDMA Overview
Channel Index State lin Digital Att Digital Att BW (sc's*fft) Report Power Report Power1_6 FFT Size
0 DISABLED 0.0000 0.0000 0.0000 0.0000 0.0000 2K
1 DISABLED 0.0000 0.0000 0.0000 0.0000 0.0000 2K