Forum Discussion

Marek's avatar
Marek
New Contributor
4 years ago

Switched to Gigablast - Down speed = 80 mb, Up speed = 35

Hi there,  I am wondering if Cox support is monitoring and support these posts here? 

Just switched to Gigablast and only getting 80 mb download on a good day. Upload is good 35 mb. I used to have 200 mb down on my old plan. 

I contacted my Arris 8200 modem support, they said 

( 17m 21s ) Pooja G: This device is having 32 downstream x 8 upstream DOCSIS 3.0 bonded channels.
( 17m 56s ) Pooja G: Problem with the signal, modem is not getting proper signal from ISP. Also, 1 channel is having 43 dbmv.
( 18m 17s ) Pooja G: Recommended Min Upstream Power : 45 dBmV Recommended Max Upstream Power :61 dBmV
( 19m 9s ) Marek: ok,what does that mean? :) what should I tell Cox?
( 19m 31s ) Pooja G: Please contact them and ask them to provision the modem.

Did Cox not provision the modem when they connected it? 

This is frustrating to be paying for Gigablast expecting 900 mb and only getting 80 mb.

Here is the raw logs from the actual modem, not sure what it all means:

Acquire Downstream Channel 903000000 Hz Locked
Connectivity State OK Operational
Boot State OK Operational
Configuration File OK
Security Enabled BPI+
DOCSIS Network Access Enabled Allowed
Downstream Bonded Channels
Channel ID Lock Status Modulation Frequency Power SNR/MER Corrected Uncorrectables
21 Locked QAM256 903000000 Hz -2.8 dBmV 40.0 dB 582 1492
1 Locked QAM256 783000000 Hz -2.0 dBmV 40.9 dB 0 0
2 Locked QAM256 789000000 Hz -1.4 dBmV 41.1 dB 0 0
3 Locked QAM256 795000000 Hz -2.3 dBmV 40.6 dB 0 0
4 Locked QAM256 801000000 Hz -1.7 dBmV 40.8 dB 0 0
5 Locked QAM256 807000000 Hz -2.4 dBmV 40.4 dB 0 0
6 Locked QAM256 813000000 Hz -1.0 dBmV 41.1 dB 0 0
7 Locked QAM256 819000000 Hz -1.4 dBmV 41.0 dB 0 0
8 Locked QAM256 825000000 Hz -1.3 dBmV 40.9 dB 0 0
9 Locked QAM256 831000000 Hz -2.4 dBmV 40.4 dB 0 0
10 Locked QAM256 837000000 Hz -2.0 dBmV 40.5 dB 0 0
11 Locked QAM256 843000000 Hz -2.7 dBmV 40.3 dB 0 0
12 Locked QAM256 849000000 Hz -2.1 dBmV 40.5 dB 0 0
13 Locked QAM256 855000000 Hz -3.1 dBmV 40.0 dB 0 0
14 Locked QAM256 861000000 Hz -3.1 dBmV 39.8 dB 0 0
15 Locked QAM256 867000000 Hz -3.5 dBmV 39.6 dB 0 0
16 Locked QAM256 873000000 Hz -2.4 dBmV 40.2 dB 0 0
17 Locked QAM256 879000000 Hz -2.7 dBmV 40.2 dB 0 0
18 Locked QAM256 885000000 Hz -2.9 dBmV 39.9 dB 0 0
19 Locked QAM256 891000000 Hz -3.6 dBmV 39.6 dB 0 0
20 Locked QAM256 897000000 Hz -2.8 dBmV 39.8 dB 0 0
22 Locked QAM256 909000000 Hz -2.8 dBmV 39.9 dB 0 0
23 Locked QAM256 915000000 Hz -3.5 dBmV 39.4 dB 0 0
24 Locked QAM256 921000000 Hz -2.9 dBmV 39.6 dB 470 335
25 Locked QAM256 927000000 Hz -1.8 dBmV 40.3 dB 109 619
26 Locked QAM256 933000000 Hz -1.3 dBmV 40.7 dB 0 0
27 Locked QAM256 939000000 Hz -1.5 dBmV 40.5 dB 0 0
28 Locked QAM256 945000000 Hz -2.1 dBmV 40.0 dB 0 0
29 Locked QAM256 951000000 Hz -2.3 dBmV 39.9 dB 0 0
30 Locked QAM256 957000000 Hz -1.5 dBmV 40.5 dB 0 0
31 Locked QAM256 963000000 Hz -0.4 dBmV 41.0 dB 0 0
32 Locked QAM256 969000000 Hz -0.8 dBmV 40.8 dB 0 0
159 Locked Other 300000000 Hz -2.6 dBmV 40.0 dB 17812932 0


Upstream Bonded Channels
Channel Channel ID Lock Status US Channel Type Frequency Width Power
1 4 Locked SC-QAM Upstream 36900000 Hz 6400000 Hz 48.0 dBmV
2 1 Locked SC-QAM Upstream 17700000 Hz 6400000 Hz 46.0 dBmV
3 2 Locked SC-QAM Upstream 24100000 Hz 6400000 Hz 47.0 dBmV
4 3 Locked SC-QAM Upstream 30500000 Hz 6400000 Hz 49.0 dBmV
5 6 Locked SC-QAM Upstream 12900000 Hz 3200000 Hz 43.0 dBmV

Any help greatly appreciated. 

thank you

4 Replies

Sort By
  • BigLagBates's avatar
    BigLagBates
    New Contributor
    4 years ago

    Your just another one unfortunately. False written and signed contracts 

  • cr0sh's avatar
    cr0sh
    New Contributor
    4 years ago

    Are you connecting via wifi to the router, or is it a wired connection? If wired, Cat5e? Cat6? Cat7? 5e can be marginal depending on age, how it was pulled, etc (but in theory can do it).

    Cat6 or better is rec'd for gig speeds.

    Also, any switches, etc need to be gigabit (1000-base-T), too. And your network adapter on your computer, obviously, needs to 1000-base-T too...

    I once had a Cat5e line run between a couple of switches in my home, and when I upgraded (internally to my network) to gigabit, I wasn't getting the speeds. Did a check of the cable, and found that I was only running on two of the four pairs (the others were broken) - fine for 100-base-T (well - I got lucky on the pairs - had it been a different combo - it would have been completely dead), no good for 1000-base-T.

    Bought new cable and ran a new line (in my attic - hot and dusty work - ugh - too old for that kind of thing) - all was good afterwards. Just an anecdotal story.

    Best way to check your speeds is to plug directly into the router that is plugged into the modem, using a known good cable, and knowing what your network adapter on your computer and everything else is - if you have all known-good settings and equipment, and everything is rated/spec'd for the speeds - but you're still having problems - then you can look elsewhere for the issue. But first, you have to isolate the problem.

    • Marek's avatar
      Marek
      New Contributor
      4 years ago

      wow, cool story about 2 vs 4 pairs. I tested it directly to the router using the cable that came from the giga modem, but the computer was 7 years old so maybe the internet eth adapter was not kosher. I will keep fighting. Thank you for the tips, it is helpful. 

    • Bruce's avatar
      Bruce
      Honored Contributor III
      4 years ago
      Best way to check your speeds

      ...is to plug directly into the modem, not router.

      A speed test should test 1 segment of a network.  We all have 2 networks in our homes:  CoxNet and our personal network.  If you connect directly to a router, you're testing over 2 networks.  To isolate, connect directly to the CoxNet (modem).  If you're getting acceptable measurements, you could then test your local segments.