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Maybe a little help? PLS Internet.

Method187
I Plan to Stick Around

Hello, after years of owning a rogers cellphone I finally was like lets try Rogers Internet, so I got the Gigabit plan. Totally stoked, however had a technician come today because we need a new wire ran to the house cause when I got my modem I just had downstream constantly flashing. So he installed a new wire to the house and hooked up it up to the wire in the wall. He plugged in the modem made sure it was connected and left. Very nice man, but overall didn't even run speedtests or anything. So I ran a few different speed tests. Wireless on my laptop I get between 30 to 40mb down and bout 30 mb up. Hardwired I get bout 42mb down and 31mb up. On my phone wireless on 2.4 I get between 60 to 80mb down and 34mb up. On my cell on 5G i get about 200 to 250mb down and 33mb up. So I was like lemme run my ps4 hardwired and I get after many tests between 78 and 481mb down and 5 to 10mb up.  I feel I am no where getting speeds that I should. Mind you my friend says new internet needs to be worked in... i kinda dont believe that. I did get it earlier today. We also had another tech guy stop by today and said he is going to check the box down the street and see if there is a problem there and he will be back and he never returned. He said that his tech said there was a big fluctuation in the signal or something.  Anyways these are stats from my modem and I dont know what they mean are they good? mediocre? bad? Any tips ?

Downstream Overview

Port IDFrequency (MHz)ModulationSignal strength (dBmV)Channel IDSignal noise ratio (dB)
1591000000256QAM4.400737.636
2855000000256QAM-5.100334.484
3861000000256QAM-4.900434.484
4579000000256QAM4.900538.605
5585000000256QAM4.600638.605
6849000000256QAM-5.200234.484
7597000000256QAM4.400838.605
8603000000256QAM4.500938.983
9609000000256QAM3.6001038.605
10615000000256QAM3.9001137.636
11621000000256QAM4.1001238.605
12633000000256QAM4.1001338.605
13639000000256QAM3.7001438.605
14645000000256QAM3.9001538.605
15651000000256QAM3.9001638.605
16657000000256QAM3.7001738.605
17663000000256QAM3.5001838.605
18669000000256QAM2.9001937.636
19675000000256QAM2.4002037.636
20681000000256QAM2.5002137.636
21687000000256QAM1.7002237.356
22693000000256QAM1.6002337.636
23699000000256QAM1.2002437.356
24705000000256QAM0.5002537.636
25711000000256QAM-0.1002636.610
26717000000256QAM-0.9002736.610
27723000000256QAM-1.2002835.780
28825000000256QAM-5.1002934.346
29831000000256QAM-5.4003034.346
30837000000256QAM-5.2003134.484
31843000000256QAM-5.2003234.484
32303000000256QAM12.100137.636

Upstream Overview

Port IDFrequency (MHz)ModulationSignal strength (dBmV)Channel IDBandwidth
130596000ATDMA - 64QAM37.00046400000
238596000ATDMA - 64QAM38.75063200000
323700000ATDMA - 64QAM36.50056400000


any help would be appreciated! Thanks! 

11 REPLIES 11

Re: Maybe a little help? PLS Internet.

Gdkitty
Resident Expert
Resident Expert

There should be more than those downstream and upstream as well.
Can you post anything else that shows up on that screen?


What is showing there.. while not completely out of spec.. there is a ton of jump up and down on them +4 to -5.. and even a 12+
There may be something with the signal.

When doing your speed test, Always do wired.  As there can be many other factors with wireless which can effect things and slow it down.
Make sure if your using speedtest.net, use the Rogers or Telus as the end server.  Its the closest to the source, so should give the most true.  As you start going to other networks.. your never going to potentially get your MAX the further you go out.  But this should prove the line is capable.

Though on the wired note.  Make sure that your card is capable.
If a laptop, there is a ton of them which only put in 10/100 cards, so you would never get over 100 then anyways.

Re: Maybe a little help? PLS Internet.

Method187
I Plan to Stick Around

Hello, thank you for the reply! 

 

The only other thing on the page is 

 

OFDM Downstream Overview

ReceiverFFT typeSubcarr 0 Frequency(MHz)PLC lockedNCP lockedMDC1 lockedPLC power(dBmv)
04K275600000YESYESYES10.099998
1NANANONONONA

 

 

OFDM/OFDMA OverviewChannel IndexStatelin Digital AttDigital AttBW (sc's*fft)Report PowerReport Power1_6FFT Size0DISABLED0.50000.00000.0000-inf-1.00004K1DISABLED0.50000.00000.0000-inf-1.0000 4K

Re: Maybe a little help? PLS Internet.

Method187
I Plan to Stick Around

Hello, quick update did talk to rogers... they had a crew possibly working on a box in my area because of the Tech had concerns because of the signal stuff... ill keep yall posted.

 

Re: Maybe a little help? PLS Internet.

Method187
I Plan to Stick Around

Hey so my internet cut off for a little today came back on figured they were trying to figure something out. Now these are my downstream numbers.

 

Downstream Overview

Port IDFrequency (MHz)ModulationSignal strength (dBmV)Channel IDSignal noise ratio (dB)
1669000000256QAM8.7001938.605
2849000000256QAM1.800237.636
3855000000256QAM1.600337.356
4861000000256QAM1.400437.356
5579000000256QAM11.400540.946
6585000000256QAM11.200640.366
7591000000256QAM10.800740.366
8597000000256QAM10.800840.366
9603000000256QAM10.900940.946
10609000000256QAM10.3001040.366
11615000000256QAM10.4001140.946
12621000000256QAM10.4001240.366
13633000000256QAM10.2001340.366
14639000000256QAM9.8001440.946
15645000000256QAM9.8001540.366
16651000000256QAM9.6001640.366
17657000000256QAM9.5001740.366
18663000000256QAM9.3001840.366
19303000000256QAM14.400138.983
20675000000256QAM8.4002040.366
21681000000256QAM8.5002140.366
22687000000256QAM8.0002238.983
23693000000256QAM7.8002340.366
24699000000256QAM7.6002438.983
25705000000256QAM6.8002538.983
26711000000256QAM6.5002638.605
27717000000256QAM5.8002738.983
28723000000256QAM5.4002838.605
29825000000256QAM1.9002937.636
30831000000256QAM1.7003037.636
31837000000256QAM2.0003137.636
32843000000256QAM1.8003237.356

 

And my upstream

Port ID     Frequency (MHz)        Modulation   Signal strength (dBmV)    Channel ID    Bandwidth                                              1            23700000              ATDMA - 64QAM       33.750                           5                   6400000       
2            38596000               ATDMA - 64QAM           35.750                          6                   3200000
3            30596000                ATDMA - 64QAM           33.750                        4                    6400000

My speed now has tanked so I guess I will talking again to tech support again and they can ask me have you rebooted your modem and is it directly plugged in to the wall... LOL sigh I am starting to think switching internet might now been a great idea.

Re: Maybe a little help? PLS Internet.

Method187
I Plan to Stick Around

forget to mention i also see this is my event log

 

No. Time Type Priority Event
1 06/14/2018 17:48:58 84000500 critical SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=;CMTS-MAC=00:17:10:93:70:a4;CM-QOS=1.1;CM-VER=3.1;
2 06/14/2018 17:48:59 84020200 warning Lost MDD Timeout;CM-MAC=;CMTS-MAC=00:17:10:93:70:a4;CM-QOS=1.1;CM-VER=3.1;
3 06/14/2018 17:51:11 84000500 critical SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=;CMTS-MAC=00:17:10:93:70:a4;CM-QOS=1.1;CM-VER=3.1;
4 06/14/2018 17:52:00 84020200 warning Lost MDD Timeout;CM-MAC=CMTS-MAC=00:17:10:93:70:a4;CM-QOS=1.1;CM-VER=3.1;
5 06/14/2018 17:52:22 82000400 critical Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=;CMTS-MAC=00:17:10:93:70:a4;CM-QOS=1.1;CM-VER=3.1;
6 06/14/2018 17:58:31 82000200 critical No Ranging Response received - T3 time-out;CM-MAC=;CMTS-MAC=00:17:10:93:70:a4;CM-QOS=1.1;CM-VER=3.1;
7 06/14/2018 18:36:50 90000000 warning MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1;CM-MAC=;CMTS-MAC=00:17:10:93:70:a4;CM-QOS=1.1;CM-VER=3.1;
 

Re: Maybe a little help? PLS Internet.

@Method187 call tech support and ask the CSR to run a signal check on the modem.  Your downstream DOCSIS 3.0 signal level are all over the place, and some of them are ridiculously high. They should all be clustered around 0 dBmV.  Usually when the downstream hits 10 dBmV, Rogers will dispatch a tech.  In theory those signal levels are all within spec.  The modem's signal range is from +15 dBmV down to -15 dBmV, but, in practice, customers usually see issues when the levels hit somewhere in the +/- 7/8 dBmV range.  

 

You need a tech to sort out the signal level problem and get those levels back down to where they belong.  If you have any other services, cable tv and/or Home Phone, let the CSR know if you're having any problems with those services, if any.  

 

In terms of the event log, the big issues there are the Sync Timing and MDD timeout.  Sometimes the MDD timeout will result in a reboot, and sometimes there isn't any effect noticed at all.  It all depends on the operating state of the modem when that happens, either the MDD data isn't necessarily required as it might match what the modem currently holds, or,  there is a change to the MDD data and what the modem currently holds isn't correct, so you end up with a modem reboot which forces it to reregister with the CMTS, download the config file and MDD data, after which it will continue to operate.   

 

Out of curiosity, are you in an apartment/condo/highrise type of building?  Just wondering why the downstream levels are so high?  Its typical to see higher downstream levels in those types of buildings, so, just curious at this point.  If not, I wonder if you happen to have an amplifier somewhere in your cable system?  

 

I've asked @CommunityHelps to modify your last post or delete it completely as it contains your modem's mac address.  For your own security and privacy, the modem's MAC address and IP address shouldn't be left out in an open forum such as this.  



Re: Maybe a little help? PLS Internet.

Method187
I Plan to Stick Around

Hello, thanks for the reply. I will get right on that. Also I live in a town house. We had a tech here when it was installed on Tuesday.  I will keep ya posted after I talked to CSR

Re: Maybe a little help? PLS Internet.

Do you have the white CODA-4582 modem, or one of the black Hitron CGN3xxx modems, or the new IPTV service which comes with the Arris XB6 modem?   For the CGN3 modems, the exact model can be seen at the back of the modem, indicated on the product sticker. 



Re: Maybe a little help? PLS Internet.

Method187
I Plan to Stick Around

i have the white coda one.

Re: Maybe a little help? PLS Internet.

Ok, in that case the modem isn't using the DOCSIS 3.0 signal levels as indicated in your post.  Its using the DOCSIS 3.1 OFDM channel, unless the signal level is so bad that the modem has switched over to the DOCSIS 3.0 downstream channels.  If you look at the front of the modem, the downstream LED should be a light blue in colour.  Its actually supposed to be magenta.  If you log into the modem and go back to the signal levels tab, the OFDM section of that table should show one downstream channel as being active.  When you post any data from that table, can you post that entire lower table, from the Downstream Overview, all the way down to the bottom of the OFDM/OFDMA Overview.

 

Edit:  looking at your first data post, you added the OFDM section, so, yup, the modem is using DOCSIS 3.1 for the downstream path. 



Re: Maybe a little help? PLS Internet.

Method187
I Plan to Stick Around

Hello again, I have an open ticket that they escalated to the engineers didn't know i had an open ticket they said they should get back to me in 24 to 48 hours

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