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me3260's avatar
me3260
New Contributor
3 years ago

3.0 Modem throttling down to 30mbps. Worked Fine for 2 months after upgrade

Using an ARRIS / Surfboard SB6183.  Have Essential Internet with 150mbps download.   2 days ago the internet started throttling to 30down/3up constantly.  Techs have come out to check all hardware ...
internet speed
modem
speed
Throttling
WiderMouthOpen's avatar
WiderMouthOpen
Esteemed Contributor II
3 years ago

Well you are bonding on all 16 downstream channels, but your SNR is low. It should be above 35-36. What did the technicians say about that? Also, can you explain how the coaxial gets from the street to the room the modem is in? Any splitters or amps?

Also, I assume you have connected direct to the modem and done a speed test that way, to rule out the router.

Darkatt's avatar
Darkatt
Honored Contributor
3 years ago

Actually, SNR should be over 30, less than 30 is a problem. 

  • WiderMouthOpen's avatar
    WiderMouthOpen
    Esteemed Contributor II
    3 years ago
    SNR should be over 30, less than 30 is a problem. 

    From my experience, I have seen problems when ever the SNR is below 35. However you are right, technically 30 is the spec.

    • Darkatt's avatar
      Darkatt
      Honored Contributor
      3 years ago

      I R A En'g'ineer. Technical is what we do.<G>