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new Arris sb8200 - issues with downstream (no blue light) with gigablast

Hi There,

Wondering if you can help me, I just got an Arris SB8200 modem today and ordered Gigablast service. 

My lights are all green (no blue at all). I am in orange county, california (92630). I connect to Cox orange county server

and my download speeds range from 300-600Mbps. Upstream is consistent at 35-40Mbps.

WIFI speed is not consistent on downstream (100-250Mbps)

So I'm not getting advertised 940Mbps and the blue light (which Arris documentation states indicates high speed DOCSIS 3.1

connection is NOT ON - still green.

My older Docsis 3.0 modem and 200Mbps service didn't have this problem. Always consistent downstream for both LAN and WIFI.

Any ideas on what the problem could be?



No Data
  • Hey there, I am having the same issue as you. New sb8200 (2 weeks old), I ordered gigablast in Las Vegas and am getting no docsis 3.1 on my upstream. After asking the 7 different techs that came out over the last two weeks, everyone answered with a "I don't know why"

    Just curious, where did you order? I am wondering if we have a faulty batch of modems?