*** This post was last edited May 2, 2017 ***
Good morning Community,
As I mentioned in a post two days ago, we have received the next firmware 2.0.10.20 from Hitron. We are currently running initial testing on this version and will push it out to participants in the firmware trial program as soon as it passes initial testing.
However, while running these tests, we discovered abnormal behavior with ICMP and are awaiting feedback from Hitron today to asses how this will be addressed. As soon as I this is confirmed, I’ll update the change log with the correct version information and start pushing it out.
In parallel, we are still working on the following high priority items. In some cases below, I requested affected customers to reach out to me via private message. If you do so, please include your modem MAC address in the subject line (even if we exchange messages daily) as there are a lot of you reaching out to me daily 🙂
UDP Packet Loss
The investigation for what has been reported as UDP packet loss is still ongoing. We have deployed a probe at one fellow forum member on both a CODA-4582 and a CGNM-3552 to collect additional data. We are actively working with Hitron and Intel on the results observed.
Based on what we know so far, in most instances UDP packet loss is coupled with higher uplink usage in the area. Although the impact is noticeable in specific logs (League of Legends), the root cause for the perceivable impact (while playing) is likely related to bufferbloat (see next issue).
Bufferbloat
When comparing the performance of a CODA-4582 to a CGNM-3552 in the same network conditions, the CODA-4582 consistently reports higher bufferbloat when tested on DSLReports.
Update April 12: The solution for this problem will come in two folds. It will require a change in software which will possibly be included in 2.0.10.27 but more likely in 2.0.10.28 and a change in network configuration.
The network configuration change is not compatible with the current firmware so this change will only come after a vast majority of the modems are running the new code. We are however looking at a way to make the change only for specific modems to support testing in the community.
Update April 22: This problem seems resolved in firmware 2.0.10.27
5 GHz WiFi Low range for channels 36 to 48
Lower WiFi channels on the modem have a much smaller range. This is due in part to the limit imposed by Industry Canada to maximum transmit power.
Furthermore, the current automatic channel selection (auto mode) tends to select the lower channels when in similar load conditions.
Workaround: manually select higher channels (149-153-157-161)
Update April 22: The channel selection algorithm has been improved in firmware 2.0.10.27
Loss of OFDM Channel Lock
Under some RF conditions, the modem fails to lock properly on the OFDM channel. This typically result in variable performance.
Update April 12: This problem is resolved in 2.0.10.26T2
List of connected device does not get fully populated
This is a known issue that has been tracked since firmware 2.0.10.13. We are making improvements at every firmware but it is not a perfect system.
The situation is worst after a reboot or firmware upgrade as the list gets reset and must be repopulated as devices renew their DHCP lease.
NAT Loopback not working for wired clients
When setting up port forwarding to an internal server, it is possible for a client on WiFi to reach the server using the external IP/port. If the client is on a wired interface, it doesn't work.
Update April 12: This problem is resolved in 2.0.10.26T2 (not confirmed)
LAN Counters not working
Some customers reported that LAN counters (especially in bridge mode) are reporting inaccurate values.
This problem has been reported to Hitron for investigation.
Unexpected modem reboot
Some customers reported their modem reboots unexpectedly. We have also seen this behavior in our lab.
Update April 12: This problem is resolved in 2.0.10.26T2
Missing SC-QAM Channels
After a reboot, some modems are missing SC-QAM channels. A fix has been implemented in 2.0.10.26T2 to address this behavior but it has not corrected all scenarios.
Investigation continues with Hitron.
WiFi Survey
The WiFi Survey functionality in firmware 2.0.10.26T2 (and possibly before) reports incorrect SSID names.
Guest Network
When connecting to the Guest Network, an error message is displayed "only allow DHCP client to use this wireless". This has been reported in firmware 2.0.10.26T2.
Update April 22: This issue has been resolved in firmware 2.0.10.27
Update May 2: It seems this issue is not fully resolved and still experienced by some users
Future Planned Improvements
The following are items that we are working on in parallel of the above.
- Improvement in WiFi speeds
- Improvement in latency / bufferbloat
Dave
*Edited Labels*
@lethalsniper your signal levels are ok from what I can see except for the missing channel 14, which I know has been a problem for you in the past. It still appears to be an issue.
Can you try to copy and paste the downstream and upstream tables from the modem's status page again and paste them into your previous post, essentially overwrite the previous entries. When you select the tables from the modem's Status web page, you should be able to right click to select Copy, and from there you should be able to paste that into the post, preserving the overall appearance of the tables. That normally works and makes it easier to read the data.
Please see Dave's post (change log) located here:
That doesn't look too bad. Strange that channel 14 isn't showing up. You're running on Docsis 3.0 at the moment.
One would think that it shouldn't be hard to determine if the CMTS line card is transmitting channel 14 or not, and, if it is, where does it stop enroute to your modem.
Send your request for .20 to @CommunityHelps. Include the MAC address and serial number which is located on the STATUS page.
@RogersDave My Download Signals are off the chart again and as I said before I have the central cable hub about 20 feet away from my house. Do you think I should install the 6db cable attenuator that I have that I got from a rogers tech truck? It's running fine as is and no dropping of the internet or any other issues?
TIA,
Daniel 
Speed tests done on the CODA Black Dot via the 5G wireless channel.
Downstream Overview
| Port ID | Frequency (MHz) | Modulation | Signal strength (dBmV) | Channel ID | Signal noise ratio (dB) |
| 1 | 591000000 | 256QAM | 7.500 | 31 | 40.366 |
| 2 | 657000000 | 256QAM | 7.400 | 41 | 38.983 |
| 3 | 663000000 | 256QAM | 8.600 | 42 | 38.983 |
| 4 | 669000000 | 256QAM | 9.300 | 43 | 38.983 |
| 5 | 675000000 | 256QAM | 9.600 | 44 | 38.605 |
| 6 | 681000000 | 256QAM | 9.900 | 45 | 38.605 |
| 7 | 687000000 | 256QAM | 9.800 | 46 | 38.983 |
| 8 | 693000000 | 256QAM | 9.800 | 47 | 38.983 |
| 9 | 699000000 | 256QAM | 8.800 | 48 | 37.636 |
| 10 | 705000000 | 256QAM | 9.100 | 49 | 37.636 |
| 11 | 711000000 | 256QAM | 9.000 | 50 | 37.356 |
| 12 | 717000000 | 256QAM | 9.500 | 51 | 37.636 |
| 13 | 723000000 | 256QAM | 9.900 | 52 | 36.610 |
| 14 | 825000000 | 256QAM | 9.900 | 53 | 36.387 |
| 15 | 831000000 | 256QAM | 10.800 | 54 | 37.356 |
| 16 | 837000000 | 256QAM | 10.700 | 55 | 37.356 |
| 17 | 843000000 | 256QAM | 9.800 | 56 | 37.356 |
| 18 | 849000000 | 256QAM | 9.600 | 57 | 37.356 |
| 19 | 567000000 | 256QAM | 8.200 | 27 | 40.366 |
| 20 | 573000000 | 256QAM | 8.300 | 28 | 40.366 |
| 21 | 579000000 | 256QAM | 8.100 | 29 | 40.946 |
| 22 | 585000000 | 256QAM | 8.100 | 30 | 40.366 |
| 23 | 855000000 | 256QAM | 8.700 | 58 | 37.356 |
| 24 | 597000000 | 256QAM | 7.200 | 32 | 40.366 |
| 25 | 603000000 | 256QAM | 7.900 | 33 | 40.366 |
| 26 | 609000000 | 256QAM | 8.400 | 34 | 40.366 |
| 27 | 615000000 | 256QAM | 9.100 | 35 | 40.366 |
| 28 | 861000000 | 256QAM | 7.500 | 59 | 37.356 |
| 29 | 633000000 | 256QAM | 9.100 | 37 | 40.366 |
| 30 | 639000000 | 256QAM | 7.900 | 38 | 38.605 |
| 31 | 645000000 | 256QAM | 7.200 | 39 | 38.983 |
| 32 | 651000000 | 256QAM | 7.000 | 40 | 38.605 |
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 | 41.500 | 1 | 6400000 |
| 2 | 38596000 | ATDMA - 64QAM | 43.750 | 3 | 3200000 |
| 3 | 23700000 | ATDMA - 64QAM | 40.250 | 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 |
Another odd issue has corrected itself for some reason? They both show as ON now?
I'm still on .20 Firmware.
@Vikentieff wrote:But what if I was registred for the beta with an older modem and now got it swapped for coda? Dave mentioned somewhere that such testers don't need to register again. But what if I would like to get .20 pushed to my modem instead of the .19? I PMed Dave anyway, still no reply...
@Vikentieff, If you were already on the trial, I will eventually detect it. I update all the records every 2-3 weeks. In that case, sending me a PM also works.
Just keep in mind that I am receiving a lot of private messages these days. Ultimately, I'm really trying to get some testing done, document open issues, make sure that Hitron has everything they need to correctly diagnose issues.
I have a backlog right now on some forum posts, trying to get a resolution for the problems affecting multiple customers. Unfortunately, I may be lacking the time to answer everybody at this point but I'm doing my best.
@lethalsniper wrote:
- @just picked up the coda modem i have the firmware .13 is that the newest one ? if you dont mind @Datalink @RogersDave can you please have a look at my modem signals do they look normal?
@lethalsniper, I just checked your modem and aside from the 435 MHz channel (you are aware of this situation), everything else looks good. I've also pushed the latest test firmware to your modem.
@Triple_Helix wrote:@RogersDave My Download Signals are off the chart again and as I said before I have the central cable hub about 20 feet away from my house. Do you think I should install the 6db cable attenuator that I have that I got from a rogers tech truck? It's running fine as is and no dropping of the internet or any other issues?
@Triple_Helix, yes I would put that attenuator, that signal is too high. But we will have to keep an eye on your uplink. Depending on the attenuator you have, it will have a different impact but I can check that easily (I wouldn't trust 100% the uplink signal values from the modem. They are reported in D3.1 mode although this is D3.0 so there is a delta.
Dave
You are officially registered as a trial participants so I pushed the latest version to your modem which is 2.0.10.20. When I receive 2.0.10.21 or any future version, you will also receive it.
If someone is not on the trial, their modem will get updated automatically to the production version, which is currently 2.0.10.19, within 48-72 hours.
The change log is available in this message
Dave
@RogersDave this is my signals now with the -6db attenuator installed and rebooted so is it okay (better) now?
Downstream Overview
| Port ID | Frequency (MHz) | Modulation | Signal strength (dBmV) | Channel ID | Signal noise ratio (dB) |
| 1 | 609000000 | 256QAM | 2.900 | 34 | 38.605 |
| 2 | 363000000 | 256QAM | -1.300 | 10 | 38.983 |
| 3 | 369000000 | 256QAM | -0.700 | 11 | 38.983 |
| 4 | 375000000 | 256QAM | -1.000 | 12 | 38.605 |
| 5 | 381000000 | 256QAM | -1.800 | 13 | 38.605 |
| 6 | 387000000 | 256QAM | -1.100 | 14 | 38.605 |
| 7 | 393000000 | 256QAM | -1.000 | 15 | 38.605 |
| 8 | 399000000 | 256QAM | -0.100 | 16 | 38.983 |
| 9 | 405000000 | 256QAM | -0.200 | 17 | 38.983 |
| 10 | 411000000 | 256QAM | 0.100 | 18 | 38.983 |
| 11 | 417000000 | 256QAM | 0.600 | 19 | 38.605 |
| 12 | 423000000 | 256QAM | 0.800 | 20 | 38.983 |
| 13 | 429000000 | 256QAM | 0.600 | 21 | 38.605 |
| 14 | 435000000 | 256QAM | 0.200 | 22 | 38.605 |
| 15 | 441000000 | 256QAM | -0.100 | 23 | 38.605 |
| 16 | 447000000 | 256QAM | 0.100 | 24 | 38.605 |
| 17 | 555000000 | 256QAM | 2.100 | 25 | 38.605 |
| 18 | 561000000 | 256QAM | 2.300 | 26 | 38.983 |
| 19 | 567000000 | 64QAM | 2.200 | 27 | 4.191 |
| 20 | 573000000 | 64QAM | 2.300 | 28 | 4.191 |
| 21 | 579000000 | 256QAM | 2.100 | 29 | 4.243 |
| 22 | 585000000 | 64QAM | 2.200 | 30 | 4.191 |
| 23 | 591000000 | 256QAM | 1.500 | 31 | 37.636 |
| 24 | 597000000 | 64QAM | 1.500 | 32 | 4.191 |
| 25 | 603000000 | 64QAM | 2.200 | 33 | 4.191 |
| 26 | 609000000 | 64QAM | -1.200 | 9 | 4.191 |
| 27 | 615000000 | 256QAM | 3.400 | 35 | 38.605 |
| 28 | 621000000 | 256QAM | 3.400 | 36 | 38.605 |
| 29 | 633000000 | 256QAM | 3.100 | 37 | 38.605 |
| 30 | 639000000 | 256QAM | 2.000 | 38 | 37.636 |
| 31 | 645000000 | 256QAM | 1.200 | 39 | 37.636 |
| 32 | 651000000 | 256QAM | 0.800 | 40 | 37.636 |
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 | 38596000 | ATDMA - 64QAM | 49.750 | 3 | 3200000 |
| 2 | 30596000 | ATDMA - 64QAM | 47.750 | 1 | 6400000 |
| 3 | 23700000 | ATDMA - 64QAM | 46.250 | 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 |
@Triple_Helix check the attenuator. It should be hand tightened, or, very lightly with a wrench, and I do mean very lightly. If the channels with the signal to noise ratios of 4.191 don't improve back up to the mid thirties, pull the attenuator off completely as it won't be doing you any good with those low signal to noise ratios.
@eddiethefunnyon wrote:The SNR levels on the downstream that are on 4.191 looks pretty bad. Have you rebooted the modem? Once you do so run a speedtest to see if speeds improved.
@Datalink Rebooted again and many download channels missing.
Downstream Overview
| Port ID | Frequency (MHz) | Modulation | Signal strength (dBmV) | Channel ID | Signal noise ratio (dB) |
| 1 | 609000000 | 256QAM | 2.900 | 34 | 38.605 |
| 2 | 363000000 | 256QAM | -1.300 | 10 | 38.605 |
| 3 | 369000000 | 256QAM | -0.700 | 11 | 38.605 |
| 4 | 375000000 | 256QAM | -1.000 | 12 | 38.605 |
| 5 | 381000000 | 256QAM | -1.700 | 13 | 38.983 |
| 6 | 387000000 | 256QAM | -1.200 | 14 | 38.605 |
| 7 | 393000000 | 256QAM | -1.000 | 15 | 38.983 |
| 8 | 399000000 | 256QAM | -0.200 | 16 | 38.983 |
| 9 | 405000000 | 256QAM | -0.200 | 17 | 38.605 |
| 10 | 411000000 | 256QAM | 0.100 | 18 | 38.605 |
| 11 | 417000000 | 256QAM | 0.500 | 19 | 38.983 |
| 12 | 423000000 | 256QAM | 0.700 | 20 | 38.983 |
| 13 | 429000000 | 256QAM | 0.500 | 21 | 38.605 |
| 14 | 435000000 | 256QAM | 0.200 | 22 | 38.605 |
| 15 | 441000000 | 256QAM | -0.100 | 23 | 38.983 |
| 16 | 447000000 | 256QAM | 0.000 | 24 | 38.983 |
| 17 | 555000000 | 256QAM | 2.000 | 25 | 38.605 |
| 18 | 561000000 | 256QAM | 2.300 | 26 | 38.605 |
| 23 | 591000000 | 256QAM | 1.500 | 31 | 37.636 |
| 27 | 615000000 | 256QAM | 3.500 | 35 | 38.605 |
| 28 | 621000000 | 256QAM | 3.400 | 36 | 38.605 |
| 29 | 633000000 | 256QAM | 3.100 | 37 | 38.605 |
| 30 | 639000000 | 256QAM | 1.900 | 38 | 37.636 |
| 31 | 645000000 | 256QAM | 1.200 | 39 | 37.356 |
| 32 | 651000000 | 256QAM | 0.900 | 40 | 37.356 |
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 | 38596000 | ATDMA - 64QAM | 49.750 | 3 | 3200000 |
| 2 | 30596000 | ATDMA - 64QAM | 48.000 | 1 | 6400000 |
| 3 | 23700000 | ATDMA - 64QAM | 46.250 | 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 |
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