CODA-4582 - Open Issues for Investigation

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I Plan to Stick Around
Posts: 154

Re: CODA-4582 - Open Issues for Investigation

@Alex4161

 

Not to disagree with @gp-se, but although the signal levels are all well within spec, it's the variation that concerns me a little.  In my experience when I see up to a 2.2dB difference (40% signal loss) within close frequency bands (681 to 693MHz for example), and overall a spread of 7.5dB (82% signal loss), it tells me that there's something wrong with the cabling.  This might be nothing, or it might be contributing to your problem.  Do you know what your levels were like before?

 

@gp-se you get 850mbit over Wifi?!?!

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Re: CODA-4582 - Open Issues for Investigation


@Telek wrote:

@Alex4161

 

Not to disagree with @gp-se, but although the signal levels are all well within spec, it's the variation that concerns me a little.  In my experience when I see up to a 2.2dB difference (40% signal loss) within close frequency bands (681 to 693MHz for example), and overall a spread of 7.5dB (82% signal loss), it tells me that there's something wrong with the cabling.  This might be nothing, or it might be contributing to your problem.  Do you know what your levels were like before?

 

@gp-se you get 850mbit over Wifi?!?!


My signal levels look a lot worse, I have 6-7 db of variation in my signals, however I haven't experienced any speed issues. During the summer my signal levels take a big drop, however in the winter my signals only have 3db of variation which is normal. Temperature changes the resistance so I have no control over the signals changing for the worse in the summer.

 

And yes I can pull 850mb/s over WiFi, however I have my Gateway in bridge mode running through a Pfsense box that goes to a TP Link Archer C3150 in Access Point Mode. I've tried other Routers: Asus 1900P, Asus RT-88U, and the Coda in Gateway Mode, and none of them touch the TP Link. All were tested in the same spot, and using the exact same WiFi settings/channels. With the exception of the CODA all were set to Access Point Mode using the same Pfsense box to do the routing. The closest was the 88u that pulled 700mb/s over WiFi, but it wasn't consistent, the Archer C3150 is consistently pulling 800-850mb/s over WiFi. 



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I'm a Reliable Contributor
Posts: 381

Re: CODA-4582 - Open Issues for Investigation

Thanks for the information @gp-se. I will retest tonight and see what I get.

 

Telek, I  always have signal differences as long as I can tell

Remember. Several Rogers Sr techs say not to worry about it.

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Posts: 381

Re: CODA-4582 - Open Issues for Investigation

I just ran a speedtest from the Eastlink server @gp-se and my speeds were 298.29 and 36.92.  Pretty pathetic for a 1 GB service.

 

 

 

Here is the speedtest from the Toronto Speedtest.net server:

 

 

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Re: CODA-4582 - Open Issues for Investigation

The guest network issue with "only allow DHCP client to use..." is definitely not solved. I'm running firmware version 2.0.10.28T2.  What's the point of having guest netwrok when it doesn't work and it's been such a long outstanding problem!

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Re: CODA-4582 - Open Issues for Investigation

@Alex4161

 

I am in New Brunswick, on 500/20 package

 

Getting 606-610 mbs on speedtest all the time.

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Re: CODA-4582 - Open Issues for Investigation

Slow upload after power outage

 

(150/15 using CODA-4582 with latest official firmware)

 

We had a power outage in our region of Etobicoke last week.  Lasted for about 30 minutes and affected a few thousand people.  After power was restored - and up to now - our upload speed has been less than half of what it used to be.

 

Prior to the outage, speed tests were consistently 190 down, 15 up.  Now they're 190 down, 5 up.  I've factory reset the modem, switched between gateway and bridge mode, and power-cycled the modem (left it off for a good 15 minutes).

 

The download speed is great, yes, but the upload speed is killing us (the kids, mainly).  It drops to 1.5 or 2 during heavy traffic times.  Any ideas?

 

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 9.500000
1 NA NA NO NO NO NA
Upstream Overview
Port ID Frequency (MHz) Modulation Signal strength (dBmV) Channel ID Bandwidth
1 30596075 ATDMA - 64QAM 28.000 1 6400000
2 38596000 ATDMA - 64QAM 31.750 3 3200000
3 23700507 ATDMA - 64QAM 27.750 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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Re: CODA-4582 - Open Issues for Investigation


@gborges wrote:

Slow upload after power outage

 

(150/15 using CODA-4582 with latest official firmware)

 

We had a power outage in our region of Etobicoke last week.  Lasted for about 30 minutes and affected a few thousand people.  After power was restored - and up to now - our upload speed has been less than half of what it used to be.

 

Prior to the outage, speed tests were consistently 190 down, 15 up.  Now they're 190 down, 5 up.  I've factory reset the modem, switched between gateway and bridge mode, and power-cycled the modem (left it off for a good 15 minutes).

 

The download speed is great, yes, but the upload speed is killing us (the kids, mainly).  It drops to 1.5 or 2 during heavy traffic times.  Any ideas?

 

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 9.500000
1 NA NA NO NO NO NA
Upstream Overview
Port ID Frequency (MHz) Modulation Signal strength (dBmV) Channel ID Bandwidth
1 30596075 ATDMA - 64QAM 28.000 1 6400000
2 38596000 ATDMA - 64QAM 31.750 3 3200000
3 23700507 ATDMA - 64QAM 27.750 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

You need a tech visit, your upload signals are too low. I would call Rogers and have them run a signal check on your line.

 



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Re: CODA-4582 - Open Issues for Investigation

Thanks for the reply.  Curious that my upload was only affected after the power outage ... I could've sworn that the upstream signal stats were basically the same prior to last week as they are now.

 

Are you sure about them being too low?  A poster on a previous thread has very similar stats and great upload:

http://communityforums.rogers.com/t5/Internet/Rogers-Hitron-CODA-4582-Hardware/m-p/387449#M43381

 

And, yes, I'll be calling Rogers...

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Re: CODA-4582 - Open Issues for Investigation


@gborges wrote:

Thanks for the reply.  Curious that my upload was only affected after the power outage ... I could've sworn that the upstream signal stats were basically the same prior to last week as they are now.

 

Are you sure about them being too low?  A poster on a previous thread has very similar stats and great upload:

http://communityforums.rogers.com/t5/Internet/Rogers-Hitron-CODA-4582-Hardware/m-p/387449#M43381

 

And, yes, I'll be calling Rogers...


Although upload speeds could be good, you are borderline, so any noise that enters the line will cause upload issues. It's better to get the upload signals in the middle range so there is room up/down if noise/signal changes.