CODA-4582 - Open Issues for Investigation

Need Help?

That's what we're here for! The goal of the Rogers Community is to help you find answers on everything Rogers. Can't find what you're looking for? Just ask!
cancel
Showing results for 
Search instead for 
Did you mean: 
Reply
lethalsniper
I'm an Enthusiast
Posts: 1,011

Re: CODA-4582 - Open Issues for Investigation

Correction it was firmware .20 before .23 @RogersDave please read post above and let me know thanks.
DaveFro
I Plan to Stick Around
Posts: 38

Re: CODA-4582 - Open Issues for Investigation


@StephKitty wrote:

@gp-se I'm not sure how to read it but here it is:

 

Downstream Overview
Port IDFrequency (MHz)ModulationSignal strength (dBmV)Channel IDSignal noise ratio (dB)
1609000000256QAM5.7001038.605
11615000000256QAM6.0001138.605
12621000000256QAM6.3001238.605
13633000000256QAM5.6001338.605
14639000000256QAM5.5001438.605
15645000000256QAM5.5001538.605
16651000000256QAM5.6001638.605
17657000000256QAM5.4001738.605
18663000000256QAM5.4001838.605
19669000000256QAM5.3001938.605
20675000000256QAM5.6002038.605
21681000000256QAM5.5002138.605
22687000000256QAM5.3002238.605
23693000000256QAM5.2002337.636
24699000000256QAM4.9002437.636
25705000000256QAM4.4002537.636
26711000000256QAM4.0002637.636
27717000000256QAM3.9002737.636
28723000000256QAM3.2002837.636
29825000000256QAM6.7002938.983
30831000000256QAM6.4003037.636
31837000000256QAM6.0003137.356
OFDM Downstream Overview
ReceiverFFT typeSubcarr 0 Frequency(MHz)PLC lockedNCP lockedMDC1 lockedPLC power(dBmv)
0NANANONONONA
14K275600000YESYESYES5.699997
Upstream Overview
Port IDFrequency (MHz)ModulationSignal strength (dBmV)Channel IDBandwidth
138596000ATDMA - 16QAM33.25033200000
230596000ATDMA - 16QAM32.25016400000
323700000ATDMA - 16QAM32.00026400000
OFDM/OFDMA Overview
Channel IndexStatelin Digital AttDigital AttBW (sc's*fft)Report PowerReport Power1_6FFT Size
0DISABLED0.50000.00000.0000-inf-1.00004K
1DISABLED0.50000.00000.0000-inf-1.00004K

Oh wow, you are missing most of your downstream channels!

 

I believe this is due to the 2.4 ghz interference issue on the "non-black-dot" units. The black dot units have extra shielding to prevent the 2.4 ghz signals from messing with the modem and causing it to drop channels. Without all your channels you will have terrible speed. I'll bet that when you first reboot, and your speed is good, you have all your channels 1-32, but after time and interference they start dropping. Check your channels when you first reboot, and then once the speeds slows down to compare.

 

Your signal levels however seem great, and you have docsis 3.1 active in your area.

 

For now you could try disabling 2.4 ghz radio on the modem, or if you are in bridge mode, you could try moving your wireless router way further away from your modem.

 

I'm sure you will be told to exchange your modem for the black dot version if you talk to tech support.

 

 

markopas
I Plan to Stick Around
Posts: 98

Re: CODA-4582 - Open Issues for Investigation

I am still on the .19 firmware and went in to go look at my status to see if there have been any f/w updates (none). I did notice the same issue as mentioned by StephKitty where I am now missing channels 2 - 10 (might even be more than that). But everything still works as it has in the past with no changes, I am still getting about 900-950 down and 30 up. Wireless is still ok, I mean 5GHz can always use some tweaking (which I tried over the weekend playing with the channels and bandwidth).
bfanek
I'm Here A Lot
Posts: 6

Re: CODA-4582 - Open Issues for Investigation

@RogersDave

 

I would like to return this faulty CODA modem back.

I'm still having connection dropping issues every few hours, i have to reboot the modem 2-4 times DAILY.

 

This is unacceptable, and this modem is clearly faulty. It's essential that my connection *never* drops because i'm connecting remotely to my computer at all times.

I do not want to wait until you guys fix all these issues with this modem (if ever).

 

What are my options of using other modems? Could you please provide a list of supported modems?

 

I do not need wifi features as I'm bridging it with my own wifi router that works perfectly.

 

Thanks!

RyzenFX
I'm a Reliable Contributor
Posts: 590

Re: CODA-4582 - Open Issues for Investigation

If you plan to return the faulty modem, your options are the CGN3ACSMR or the CGNM-3552. If you're on Gigabit you should get the 3552 as it supports speeds up to 1.2Gbps. The CGN3ASCMR only supports 960Mbps  However, given that many people have bricked modems, and are constantly returning to stores to have them replaced, there's a good chance that the modems are out of stock. Before returning the modem, I suggest calling your local Rogers store to see if they have stock of the modems.

Datalink
Resident Expert
Resident Expert
Posts: 7,259

Re: CODA-4582 - Open Issues for Investigation

@bfanek if that modem doesn't have a black dot near the power cord, then it might make sense to swap it for one that does, as that black dot indicates that the Docsis tuner has additional shielding installed to prevent interference from nearby 2.4 Ghz wifi transmitters. 

 

1.  Is that one of the original CODA-4582s without the black dot?

2.  If so, try the following experiment if the modem and router (with 2.4 Ghz operating) are close together: 

     a.  separate the two by several feet so that the router can't influence the modem; or

     b.  shut down the 2.4 Ghz on the router

 

In both cases, reboot the modem after either one of those actions.

 

Are you connecting to the computer via VPN?  Just curious at this point as I know the CGNM-3552 would crash and reboot after two to three hours of continuous VPN usage.  That might be driven entirely upon the type of VPN and protocol used.  I don't know if the same applies to this modem as I haven't had the opportunity to look for that scenario.

 

Depending on your internet plan, you would be eligible for another modem model.  The local Rogers store could tell you what model goes with what plan.  The one problem in this case is whether or not you're on a gigabit plan.  I don't know if there are restrictions in place for that plan to use the CODA-4582 only, or if it will allow the CGNM-3552.  Maybe one of the mods can answer that question.

 

The only problem with swapping modems at the moment is borking of several hundred/thousand (?) modems over the weekend due to some process that Rogers was running.  As a result, modems are in high demand and short supply, at least temporarily.  So, before you head to a store to swap modems, call first to see if any are in stock. 



StephKitty
I Plan to Stick Around
Posts: 13

Re: CODA-4582 - Open Issues for Investigation

@gp-se Thanks for the help.  I didn't realize that I was missing so many of these channels.  A Rogers tech came over about an hour ago to swap out the modem and make sure my signals were okay.

I now have the Black Dot version of the modem from Rogers which seems to have fixed the issue so far.  One thing I did notice though is that my firmware is only 2.0.10.13 and has not been updated to the latest firmware it should be on which i believe is 2.0.10.19.  Not a huge deal I guess since it's working so far, i'll just wait for it to be pushed to the latest firmware eventually.  


StephKitty
I Plan to Stick Around
Posts: 13

Re: CODA-4582 - Open Issues for Investigation


@Datalink wrote:

 

 

The only problem with swapping modems at the moment is borking of several hundred/thousand (?) modems over the weekend due to some process that Rogers was running. 



What do you mean by Borking?  Like they messed up several hundred/thousand modems over the weekend?  

Would this possibly be because of the "IPV6" fix they had planned?

Datalink
Resident Expert
Resident Expert
Posts: 7,259

Re: CODA-4582 - Open Issues for Investigation

Don't know.  Whatever was running, it looks like it definitely didn't go as planned.



arrago
I Plan to Stick Around
Posts: 13

Re: CODA-4582 - Open Issues for Investigation

you think we will get native ipv6 again soon?