Slow internet speeds

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I Plan to Stick Around
Posts: 9

Slow internet speeds

Recently I've been getting 40-55mbps download speeds when I'm supposed to get 100mbps (usually when I do speed tests I get 150mpbs). My upload speeds are what I'm supposed to be getting (10mbps).

 

 

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Resident Expert
Resident Expert
Posts: 13,921

Re: Slow internet speeds

You say when  you are doing speed tests, you are getting 100+??

How else are you showing/knowing that you are only getting 40-55 otherwise?  Just curious.

If its thats what you are maxing say on a Torrent, or download from somewhere.. that is quite possible that its a restriction on the throughput on the software itself.. or the SENDING side is maxing out speed wise that it can upload to you.



I Plan to Stick Around
Posts: 9

Re: Slow internet speeds

I did a Rogers speed test a couple of times before I posted this topic. Since yesterday I've noticed a slowdown of speed whenever I tired to connect to a website. During the tests I wasn't running any internet heavy applications (ie downloading torrents or streaming media).
I've Been Around
Posts: 1

Re: Slow internet speeds

My internet at home acting really weird last night. It is really slow. I tried the speedtest. It only got to 2M download...

Did some research on the forums and tried couple things there including reboot my modem multi times. Here is the information I got from my modem. Some data seems a bit off. I guess I will call to book an appointment soon. Any idea?

 

 

Downstream Overview
Port ID Frequency (MHz) Modulation Signal strength (dBmV) Signal noise ratio (dB) Channel ID
1 615000000 256QAM -8.500 37.356 125
2 591000000 256QAM -8.600 37.636 121
3 597000000 256QAM -8.900 37.636 122
4 603000000 256QAM -9.300 37.356 123
5 609000000 256QAM -9.000 37.636 124
6 621000000 256QAM -8.100 37.636 126
7 633000000 256QAM -8.400 37.356 127
8 639000000 256QAM -8.600 37.636 128
9 645000000 256QAM -9.200 37.356 129
10 651000000 256QAM -10.200 36.610 130
11 657000000 256QAM -10.800 36.387 131
12 663000000 256QAM -11.000 36.387 132
13 669000000 256QAM -10.700 36.387 133
14 675000000 256QAM -9.800 36.387 134
15 681000000 256QAM -9.200 37.356 135
16 687000000 256QAM -9.000 37.356 136
17 693000000 256QAM -9.500 37.356 137
18 699000000 256QAM -9.700 37.636 138
19 705000000 256QAM -9.800 37.356 139
20 711000000 256QAM -10.400 36.387 140
Upstream Overview
Port ID Frequency (MHz) BandWidth Modulation Type Signal Strength (dBmV) Channel ID
1 38596000 3200000 ATDMA 40.250 1
2 23700000 6400000 ATDMA 40.250 3
3 30596000 6400000 ATDMA 38.750 2

 

 

Resident Expert
Resident Expert
Posts: 13,921

Re: Slow internet speeds


@ChromStar wrote:
I did a Rogers speed test a couple of times before I posted this topic. Since yesterday I've noticed a slowdown of speed whenever I tired to connect to a website. During the tests I wasn't running any internet heavy applications (ie downloading torrents or streaming media).


And those speedtests are fine? or slowed down?

A slow loading page initially could just be DNS issue.

Signal posting would be appreciated to help check some things.



Resident Expert
Resident Expert
Posts: 13,921

Re: Slow internet speeds


@JamesChen wrote:

My internet at home acting really weird last night. It is really slow. I tried the speedtest. It only got to 2M download...

Did some research on the forums and tried couple things there including reboot my modem multi times. Here is the information I got from my modem. Some data seems a bit off. I guess I will call to book an appointment soon. Any idea?

 

 

Downstream Overview
Port ID Frequency (MHz) Modulation Signal strength (dBmV) Signal noise ratio (dB) Channel ID
1 615000000 256QAM -8.500 37.356 125
2 591000000 256QAM -8.600 37.636 121
3 597000000 256QAM -8.900 37.636 122
4 603000000 256QAM -9.300 37.356 123
5 609000000 256QAM -9.000 37.636 124
6 621000000 256QAM -8.100 37.636 126
7 633000000 256QAM -8.400 37.356 127
8 639000000 256QAM -8.600 37.636 128
9 645000000 256QAM -9.200 37.356 129
10 651000000 256QAM -10.200 36.610 130
11 657000000 256QAM -10.800 36.387 131
12 663000000 256QAM -11.000 36.387 132
13 669000000 256QAM -10.700 36.387 133
14 675000000 256QAM -9.800 36.387 134
15 681000000 256QAM -9.200 37.356 135
16 687000000 256QAM -9.000 37.356 136
17 693000000 256QAM -9.500 37.356 137
18 699000000 256QAM -9.700 37.636 138
19 705000000 256QAM -9.800 37.356 139
20 711000000 256QAM -10.400 36.387 140
Upstream Overview
Port ID Frequency (MHz) BandWidth Modulation Type Signal Strength (dBmV) Channel ID
1 38596000 3200000 ATDMA 40.250 1
2 23700000 6400000 ATDMA 40.250 3
3 30596000 6400000 ATDMA 38.750 2

 

 


 

Most likely... your issues ARE signal related.

Those signals are WAAAAY to low.

You would want to book a tech to come out.. and have them check everything.. street, outside the house, etc.. and replace connectors, etc as needed.. and hopefully fix the issue (bar it being say a STREET signal issue, etc)



I Plan to Stick Around
Posts: 9

Re: Slow internet speeds

I just did the speed test again and the results were: Ping- 12ms, Download- 16.69mbps, Upload- 1.25mpbs, and Jitter- 2ms. These speeds are significantly lower than what im supposed to getting (100mbps download and 10mbps upload). Here's the info you were asking for,

 

Model: CGN3ACSMR

Software version: 4.5.8.16

 

Downstream Overview

Port IDFrequency (MHz)ModulationSignal strength (dBmV)Channel IDSignal noise ratio (dB)
1603000000256QAM-14.900333.957
2591000000256QAM-14.400134.926
3597000000256QAM-14.800234.484
4609000000256QAM-15.700433.487
5615000000256QAM-16.500532.963
6621000000256QAM-16.900632.585
7633000000256QAM-18.000731.689
8639000000256QAM-18.100831.404
9645000000256QAM-18.400931.335
10651000000256QAM-18.4001031.404
11657000000256QAM-18.4001131.335
12663000000256QAM-18.5001231.335
13669000000256QAM-18.3003731.404
14675000000256QAM-18.4003831.072
15681000000256QAM-18.0003931.689
16687000000256QAM-18.0004031.616
17693000000256QAM-18.0004131.689
18699000000256QAM-18.0004231.616
19705000000256QAM-17.7004331.994
20711000000256QAM-17.6004431.689

 

Upstream Overview

Port IDFrequency (MHz)ModulationSignal strength (dBmV)Channel IDBandWidth
138596000ATDMA - 64QAM51.00053200000
223700000ATDMA - 64QAM51.00076400000
330596000ATDMA - 64QAM51.00066400000
Resident Expert
Resident Expert
Posts: 6,111

Re: Slow internet speeds

You need a tech to inspect / replace the external cables and connectors.  Your signal levels are either at or beyond the DOCSIS limits.  The downstream limits are +15 dBmV down to -15 dBmV with a signal to noise ratio of 36 to 40 dB. The upstream is normally within a 36 to 40 dBmV range with an upper limit at 51 dBmV for three or four channel upstream operation.  So, your downstream levels are below the bottom downstream limit and the upstream levels are at the upper limit.  That is normally a classic sign of a cable and / or connector failure with the external cable.  Just as a quick check, ensure that the RG-6 cable is connected securely to the modem connector.  Hand tight will do. 

 

Call tech support, ask the CSR to run a signal check on the modem and indicate that you are seeing slow data rates.  The signal issues should cause large bit errors which the CSR should see without any problems.  The follow on conversation should see a tech visit to your home in the next day or two.

 

When the tech has completed his or her work, can you repost the signal levels, just to see how they turned out and post the results of a speedcheck from either http://speedcheck.rogers.com/en.html or www.speedtest.net using the Toronto Telus server.



I Plan to Stick Around
Posts: 9

Re: Slow internet speeds

Ok thanks for the info, I'll be sure to contact tech support today and I'll report back here when they fix my problems.

I Plan to Stick Around
Posts: 9

Re: Slow internet speeds

The tech came in today and here are the updated signal levels. I also ran the speed test again and the results were (On 5G wifi) Ping- 12, Download- 45.41mbps and Upload- 2.81mbps. The speeds are still lower then what I should be getting, but the only time the speeds are what they're supposed to be is when you plug in a computer directly to the modem.

 

Downstream Overview
Port IDFrequency (MHz)ModulationSignal strength (dBmV)Channel IDSignal noise ratio (dB)
1603000000256QAM-6.900337.636
2591000000256QAM-6.600138.605
3597000000256QAM-6.800238.605
4609000000256QAM-7.400437.636
5615000000256QAM-7.800537.356
6621000000256QAM-8.300637.356
7633000000256QAM-8.900737.636
8639000000256QAM-9.200837.356
9645000000256QAM-9.700936.610
10651000000256QAM-9.8001036.610
11657000000256QAM-10.0001136.610
12663000000256QAM-10.1001236.610
13669000000256QAM-10.0003736.610
14675000000256QAM-9.9003836.610
15681000000256QAM-9.6003937.356
16687000000256QAM-9.8004036.387
17693000000256QAM-9.7004136.610
18699000000256QAM-9.8004236.610
19705000000256QAM-9.6004337.356
20711000000256QAM-9.4004436.387
Upstream Overview
Port IDFrequency (MHz)ModulationSignal strength (dBmV)Channel IDBandWidth
138596000ATDMA - 64QAM46.25053200000
223700000ATDMA - 64QAM46.25076400000
330596000ATDMA - 64QAM46.25066400000