Follow the instructions from Motorola and it goes fairly well. The literature from Motorola stated that I could set it up with only an account number and a phone number. In the end, I had to call Xfinity/Comcast and have them register the modem on their network with me. My old modem only supported DOCSIS 3.0 and then not the latest developments of DOCSIS 3.0. The new one supports all DOCSIS 3.0 connections at their highest connect rates as well as DOCSIS 3.1. The modem, after registering, made a DOCSIS 3.1 connection as indicated on the front of device with a lighted symbol showing so. As a whole, I have been a long time supporter of Motorola, and know I can trust them to produce quality products. This one is no exception.
Verified purchase: Yes | Condition: New
Unfortunately, although RCN supports DOCSIS 3.0 and 3.1 modems, they explicitly do not support this one model, and neither RCN nor Motorola seems to be working on the problem. When asked about it, RCN said, "The Motorola MB8600 can connect but is known to have a lot of issues keeping a stable connection with our network. I am not sure of the exact details, only that downstream and upstream channels will not stay locked, often causing an intermittent modem."
Verified purchase: Yes | Condition: Pre-owned
I've shopped for a modem to future proof my needs and looked at several brand name DOCSIS 3.1 modems. The MB8600 had one of the better prices and specs. It was pretty much "plug and play" with Xfinity. I have been using it for a couple of weeks and it has been rock solid (knock on wood). I am using this as DOCSIS 3.0 with the 32 bonded channels downstream and 4 upstream. This modem can do 8 bonded channels upstream, but Xifinity limits me to just the 4 channels up. Currently, this is plenty for me as I am only on a 150 mbps plan.
Verified purchase: Yes | Condition: Pre-owned
I upgraded from a DOCSIS 3.0 Motorola MB6141 which worked OK, except I started noticing a lot of buffering going on recently in audio or video streaming (like someone remotely pressing the pause button repeatedly). Decided to try the upgrade to the MB8600 rated for DOCSIS 3.1. My internet provider Cox listed the 8600 as compatible, so I set it up, activated & VOILA no more pauses or buffering/stuttering! 2 thumbs up!
Verified purchase: Yes | Condition: New
It hooked up easy w/no instructions(purchased used). Works very well giving good connection speeds. It is much faster than docsis 3.0. It is worth upgrading to this model. I researched and felt this was the best one for the price( paid less than $90... like new), usable with WOW.
Verified purchase: Yes | Condition: Pre-owned
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