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Internet keeps disconnecting

Pguy
I Plan to Stick Around

I tried unplugging modem and 3rd party router.

This problem seems to happen more frequently. I am now entering the info into my phone (notes) - time/day of disconnection and duration.

It went down Tuesday and now today. I don't recall how long it was out last time. Maybe 30 min or 1 hr total?

I also use a wifi Smart TV.

It has reconnected a few times only to drop 5 mins (estimate) later. Sometimes the speed is normal but often, the connection is at a much lower speed suggesting a problem.

I am wondering if there's an issue.

 

*Added Labels*

1,024 REPLIES 1,024

Re: Internet Keeps Dropping

@JK6399 talk about absolutely frustrating.  Ok, @RogersTony @RogersAndy @RogersMoin @RogersCorey the ball is in your court .........



Re: Internet Keeps Dropping

augmentium
I Plan to Stick Around
@tulowindow

What router do you have? There are a number of more advanced settings on the router that can be tried. I’m no expert, just went to SNB Forums and did some asking & reading. However if you’re having the same problems in gateway mode, then it’s probably something else.

Re: Internet Keeps Dropping

JohnGM
I Plan to Stick Around
@tulowindo try not using bridge mode and not using router. Connect directly to modem by Ethernet cable if you can

Re: Internet Keeps Dropping

My internet also dropped around 2 am in the Donmills area.

Re: Internet Keeps Dropping

micha3615
I've Been Here Awhile

The 2am drop I've been told is normal since that's when they do firmware upgrade...

 

But for me the issue started way back in September, I've had about 8 Techs come to my house, 4 senior tech, escalation to the presidents office and I finally gave up and I've been using a different provider until they fix their issue.

 

Notice this post last night and confirmed  OFDMA upload has been disabled, I would guess this was done yesterday for me so will keep an eye out on this.

Re: Internet Keeps Dropping

88dalejrfan
I Plan to Stick Around

The only drop I've had since OFDMA was disabled was a short burst of 3 drops, lasting 3-5 seconds, around 2:15 AM last night. Not sure if this is normal (like a middle of the night update as often happens with the cable box). Unlike previous drops, it was not accompanied by a massive latency spike upon resumption. Midnight drop.JPG

Re: Internet Keeps Dropping

I too have been experiencing internet disconnection since Nov/Dec which happened a lot during office calls via skype or MS team. It's often embarrassing to explain to my colleagues especially when I hosted it or in the middle of my speaking. It usually lasted for 1-3 minutes, then reconnected without me rebooting the modem.  I have been monitoring this thread and I'm glad Roger seemed to finally read/listen to this forum message and disabled the OFDM/OFDMA.  Hopefully, this will end the saga of the random internet disconnection. Question:  

 

1) My Hitron CODA 4582 Modem (white) shows 2 light blues with the OFDM/OFDMA are now disabled .  Is this what should I see?  I put the modem in gateway mode. 

 

OFDM/OFDMA Overview

Channel IndexStatelin Digital AttDigital AttBW (sc's*fft)Report PowerReport Power1_6FFT Size
0DISABLED0.00000.00000.00000.00000.00002K
1DISABLED0.00000.00000.00000.00000.00002K

 

2) My signal strength on channel ID# 1 now looks low compared to other channels, but its SNR seems normal at 38.605.  Will this imply an issue in terms of internet stability or speed?

 

Downstream Overview
Port IDFrequency (MHz)ModulationSignal strength (dBmV)Channel IDSignal noise ratio (dB)
1591000000QAM2564.900738.983
2597000000QAM2564.699838.983
3603000000QAM2564.699938.605
4609000000QAM2565.0991038.983
5579000000QAM2564.199538.983
6585000000QAM2564.500638.605
7279000000QAM2560.599138.605
8615000000QAM2565.4001138.983
9621000000QAM2565.5001238.983
10633000000QAM2566.0001338.983
11639000000QAM2566.0991438.983
12645000000QAM2566.3001538.983
13651000000QAM2566.5001638.983
14657000000QAM2566.5991738.605
15663000000QAM2566.3001838.983
16669000000QAM2566.1991938.983
17675000000QAM2566.1992038.605
18681000000QAM2566.1992138.983
19687000000QAM2566.5002238.605
20693000000QAM2566.8002338.983
21699000000QAM2566.5002438.983
22705000000QAM2566.1992538.605
23711000000QAM2566.5992638.983
24717000000QAM2566.1992738.605
25723000000QAM2566.1992838.605
26825000000QAM2566.9002938.605
27831000000QAM2566.3003038.605
28837000000QAM2565.8003137.355
29843000000QAM2565.4003237.636
30849000000QAM2565.300237.636
31855000000QAM2565.099338.605
32861000000QAM2564.599437.636
OFDM Downstream Overview
ReceiverFFT typeSubcarr 0 Frequency(MHz)PLC lockedNCP lockedMDC1 lockedPLC power(dBmv)
0NANANONONONA
1NANANONONONA
Upstream Overview
Port IDFrequency (MHz)ModulationSignal strength (dBmV)Channel IDBandwidth
13870000064QAM41.52086400000
22110000064QAM42.01053200000
33230000064QAM41.77076400000
42590000064QAM41.27066400000
50QAM_NONE----1600000
60QAM_NONE----1600000
70QAM_NONE----1600000
80QAM_NONE----1600000

 

 

Re: Internet Keeps Dropping

PizzaBear
I Plan to Stick Around
@tulowindow

I checked a few of your posts but you are just not providing enough technical details to even get suggestions from people on this forum.

Are you connected by Lan cable or wifi?
Can you ping your gateway and see how the latency is.
Can you post your cable modem signal page reading.

Re: Internet Keeps Dropping

@ Datalink, I have the same issue that my modem drops for the last few months. I do have a PC connected thru ethernet and that drops as well along with wifi devices. I read thru your posts here and found probably that could me the cause in my case. 

I have white CODA-4582 model. I recently did factory reset as an option to resolve the issue.  Software version is 7.1.1.33. Below is the data table that you have requested in your post.  Let me know if can figure out what is the issue here.

 
Downstream Overview
Port ID Frequency (MHz) Modulation Signal strength (dBmV) Channel ID Signal noise ratio (dB)
1 591000000 QAM256 -4.900 7 38.605
2 597000000 QAM256 -5.200 8 38.605
3 603000000 QAM256 -4.900 9 38.983
4 855000000 QAM256 -7.099 3 38.605
5 861000000 QAM256 -7.299 4 37.636
6 579000000 QAM256 -4.799 5 35.972
7 585000000 QAM256 -4.900 6 38.605
8 849000000 QAM256 -7.099 2 37.636
9 609000000 QAM256 -4.900 10 38.983
10 615000000 QAM256 -5.200 11 38.983
11 621000000 QAM256 -5.200 12 38.605
12 633000000 QAM256 -5.099 13 38.983
13 639000000 QAM256 -5.099 14 38.983
14 645000000 QAM256 -5.000 15 38.983
15 651000000 QAM256 -4.900 16 38.983
16 657000000 QAM256 -5.000 17 38.983
17 663000000 QAM256 -4.900 18 38.983
18 669000000 QAM256 -4.900 19 38.983
19 675000000 QAM256 -4.900 20 38.983
20 681000000 QAM256 -5.000 21 38.983
21 687000000 QAM256 -5.000 22 38.605
22 693000000 QAM256 -5.000 23 38.605
23 699000000 QAM256 -5.000 24 38.605
24 705000000 QAM256 -5.099 25 38.983
25 711000000 QAM256 -5.200 26 38.605
26 717000000 QAM256 -5.299 27 38.605
27 723000000 QAM256 -5.599 28 38.983
28 825000000 QAM256 -6.400 29 38.605
29 831000000 QAM256 -6.500 30 37.636
30 837000000 QAM256 -6.599 31 37.636
31 843000000 QAM256 -6.799 32 37.355
32 279000000 QAM256 -3.900 1 38.983
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 -4.200001
1 NA NA NO NO NO NA
Upstream Overview
Port ID Frequency (MHz) Modulation Signal strength (dBmV) Channel ID Bandwidth
1 32300000 64QAM 37.020 3 6400000
2 38700000 64QAM 37.270 4 6400000
3 21100000 64QAM 35.760 1 3200000
4 25900000 64QAM 37.020 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 OPERATE 0.2052 10.8467 9.6000 42.7815 35.0000 2K
1 DISABLED 0.0000 0.0000 0.0000 0.0000 0.0000 2K

Re: Internet Keeps Dropping

I have big problem with the internet and it’s affected to my work it keep disconnected every minutes connect and disconnected. I need help as soon as possible

Re: Internet Keeps Dropping

WorldIRC123
I Plan to Stick Around
Anyone else losing access to 192.168.100.1 since OFDMA was disabled?

I’m in bridge mode. I can reboot and gain access but after several hours the address no longer connects. Internet works fine though.

Re: Internet Keeps Dropping

augmentium
I Plan to Stick Around
@WorldIRC123

It’s the opposite for me. I have no problem accessing it since OFDMA was disabled. I could only occasionally access it before.

Re: Internet Keeps Dropping

Spiritwood
I Plan to Stick Around

How do you ping your gateway and see how the latency is from a Mac?

How do you post your cable modem signal page reading?

Re: Internet Keeps Dropping

WorldIRC123
I Plan to Stick Around

@

 

Re: Internet Keeps Dropping

augmentium
I Plan to Stick Around
@WorldIRC123. Maybe try rebooting the modem. Mine is in bridge mode & OFDMA is still disabled. The lease time was changed just after midnight to 7 days. The previous lease hadn’t expired, so I assume there was a modem update then. If it’s not in bridge mode you should access the modem at 192.168.10.1.

Re: Internet Keeps Dropping

WorldIRC123
I Plan to Stick Around
Well I kept rebooting the modem. But I lost access to it after a short while. So I’ve reset it and have bridge mode off for now. We’ll see if I maintain access. That being said with OFDMA being turned back on I suspect the other issues will return.

Re: Internet Keeps Dropping

WorldIRC123
I Plan to Stick Around
And just like that I’ve already had my first one minute outage since OFDMA being reenabled.

Re: Internet Keeps Dropping

doctor80
I Plan to Stick Around

The big question now is - what happens when there will be software update to the modem. will it enable back to OFDMA?

What happens if I decide to factory reset the modem, will it enable back the OFDMA?

 

If the answer is yes, what would be the best and quickest method to disable it again?

@Datalink  any clue?

Re: Internet Keeps Dropping

WorldIRC123
I Plan to Stick Around
I’ve had three blips since OFDMA was reenabled due to my modem factory reset. So frustrating.

Re: Internet Keeps Dropping

Darios
I Plan to Stick Around

Hi there ,

I've started to experience intermittent IP drops, Rogers Coda -4082 in bridge -> Asus modem... ; Did you guys did find a root cause by any chance ? ...Coda firmware issue ?   Thank you for any suggestions...Im not sure where to start ...

 

Re: Internet Keeps Dropping

Darios
I Plan to Stick Around

HI There,

I experiencing similar issues / dropped IP / on my Coda Rogers modem...Did anyone find a root cause ?  firmware upgrade maybe ?   Thank you for any help....