CODA-4582 - Open Issues for Investigation

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I'm a Reliable Contributor
Posts: 610

Re: CODA-4582 - Open Issues for Investigation

Here's my results.

 

50 ms

DW 304  mbs

Up 32 .7 mbs

Packet loss 0%

 

On .26T2 D3.1 (250/20 package)

I Plan to Stick Around
Posts: 154

Re: CODA-4582 - Open Issues for Investigation


@Triple_Helix wrote:

Try this HTML5 speed test: https://sourceforge.net/speedtest/

 

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75mbit upstream, huh?

I Plan to Stick Around
Posts: 154

Re: CODA-4582 - Open Issues for Investigation

Rogers Speedtest Sourceforge Mar 29 2017.png

 

yuh-huh. Somehow sourceforce manages to squeeze 44% more out of my network card than it's rated for 😄

I'm Here A Lot
Posts: 5

Re: CODA-4582 - Open Issues for Investigation

Heres an update  we had tech come today and literally spend 5mins, did bother to test the signals just did a speed test. 

 

Wifi - its better now at  5g 436dl 32up 13ms ping.

2.4 140dl 30up and 12msping. Why is there such a big drop on 2.4?

 

Do these signals look okay? ive read in post here they should be close 0 , port 29 and 30 are 12 ,and 10,

do these look normal?

 

Downstream Overview

Port IDFrequency (MHz)ModulationSignal strength (dBmV)Channel IDSignal noise ratio (dB)
1591000000256QAM-2.500740.366
2561000000256QAM-2.500240.946
3567000000256QAM-2.700340.946
4573000000256QAM-2.500440.366
5579000000256QAM-2.800540.946
6585000000256QAM-2.500640.946
7555000000256QAM-2.600140.946
8597000000256QAM-2.400840.946
9603000000256QAM-2.800940.946
10609000000256QAM-2.9001040.946
11615000000256QAM-3.3001140.946
12621000000256QAM-2.8001240.366
13633000000256QAM-2.7001340.366
14639000000256QAM-3.1001440.366
15645000000256QAM-3.2001540.366
16651000000256QAM-3.2001640.366
17657000000256QAM-3.3001740.366
18663000000256QAM-3.2001840.366
19669000000256QAM-3.1001940.946
20675000000256QAM-3.0002040.946
21681000000256QAM-3.1002140.366
22687000000256QAM-3.8002240.366
23693000000256QAM-4.4002338.983
24699000000256QAM-5.0002438.983
25705000000256QAM-5.6002540.366
26711000000256QAM-6.0002638.983
27717000000256QAM-5.9002738.983
28723000000256QAM-6.5002838.605
29825000000256QAM-12.3002934.926
30831000000256QAM-10.6003036.387
32843000000256QAM-9.0003237.636

 

Upstream Overview

Port IDFrequency (MHz)ModulationSignal strength (dBmV)Channel IDBandwidth
138596000ATDMA - 64QAM43.00063200000
230596000ATDMA - 64QAM39.75046400000
323700000ATDMA - 64QAM39.25056400000
I Plan to Stick Around
Posts: 154

Re: CODA-4582 - Open Issues for Investigation


@Markpa21 wrote:

Heres an update  we had tech come today and literally spend 5mins, did bother to test the signals just did a speed test. 

 

Wifi - its better now at  5g 436dl 32up 13ms ping.

2.4 140dl 30up and 12msping. Why is there such a big drop on 2.4?

 

Do these signals look okay? ive read in post here they should be close 0 , port 29 and 30 are 12 ,and 10,

do these look normal?

 

Downstream Overview

Port IDFrequency (MHz)ModulationSignal strength (dBmV)Channel IDSignal noise ratio (dB)
1591000000256QAM-2.500740.366
11615000000256QAM-3.3001140.946
21681000000256QAM-3.1002140.366
23693000000256QAM-4.4002338.983
24699000000256QAM-5.0002438.983
25705000000256QAM-5.6002540.366
26711000000256QAM-6.0002638.983
27717000000256QAM-5.9002738.983
28723000000256QAM-6.5002838.605
29825000000256QAM-12.3002934.926
30831000000256QAM-10.6003036.387
32843000000256QAM-9.0003237.636

5ghz is not only a bigger band, with more capacity, but likely a lot less congestion as well. It was designed to be much faster overall than 2.4ghz.  Those speed differences are expected.

 

 Yeah you've definitely got some issues there -- quite possible cabling.

 

-10 to +10 is the normal accepted range, with 0 being the target.

 

I think they say that -12 is "ok" now, but considering that everything else is in the -3 range, you've definitely got an issue.

 

Are you using an amplifier anywhere? Old cabling perhaps?

 

Check again with your modem as close to the input cable as possible without any splitters and amplifiers.

I Plan to Stick Around
Posts: 20

Re: CODA-4582 - Open Issues for Investigation

does using a amplifier harm the modem? I have one in the basement and my coda is upstairs

I Plan to Stick Around
Posts: 154

Re: CODA-4582 - Open Issues for Investigation


@roy86 wrote:

does using a amplifier harm the modem? I have one in the basement and my coda is upstairs


No, provided that it's a good amplifier. Some of them are bad, and although I doubt they'd harm the modem, they may cause speed problems.

Resident Expert
Resident Expert
Posts: 6,141

Re: CODA-4582 - Open Issues for Investigation

@roy86 was the amp installed by a Rogers tech?  One problem with amps is that they can mask or hide cable signal issues. 



I Plan to Stick Around
Posts: 20

Re: CODA-4582 - Open Issues for Investigation

it appears so, although the previous owner would have dealt with the tech. The modem does not work upstairs without the amplifier being on. 

 

Amplifier is antronix voip residential amplifier.

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I Plan to Stick Around
Posts: 154

Re: CODA-4582 - Open Issues for Investigation


@roy86 wrote:

it appears so, although the previous owner would have dealt with the tech. The modem does not work upstairs without the amplifier being on. 

 

Amplifier is antronix voip residential amplifier.


If you can, setup the modem in the basement directly on the incoming line, and look at the signal stats.

 

This will tell you if the problem is inside your house, or because of the incoming line.

 

If you call Rogers to investigate, and they figure out that it's your fault, you get a nice bill.

 

Also make sure that your amplifier doesn't have any open ports on it -- all unused ports need a terminator on them, otherwise they act like an antenna.