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Your cart is empty.The ARRIS DOCSIS 3.0 8x4 Cable Modem CM820A features high speed data access to cable service subscribers (Comcast) for both home & business. The CM820 meets the productivity needs with the speed and performance found only in the 8x4 bonded channel cable environment along with industry-leading ARRIS reliability. With the CM820A offers data services at speeds over 300Mbps to their subscribers to compete against VDSL and fiber to the home threats, as well as provide a platform to deliver competitive high capacity commercial services to businesses. Do verify whether or not your area of their cable provider allows them to use this item
Paulo R. Crestani Jr.
Reviewed in the United States on April 11, 2018
The modem is good, but I bought it used and I discovered later that its serial number was registered in Comocast as the equipment belonging them, and I was charged as if I was renting it. It required me to go after Comcast customer service twice and more than 1 year later they agreed to give me back the rents the had charged me monthly, which was enough for me to have bought several brand new modems like this. It seems to be a common case with used modems.
Julian Palmer
Reviewed in the United States on May 1, 2017
I have had this modem for 2-3 years now, foolishly renting it from Comcast for $10 per month. While I would have like to get a new, more expensive model - preferably a modem/router combination - some of the prices are high and this model - the Arris CM820A - is really good and has caused me no issues or hassles these past years. I pay for the 100 mbps internet package which works great for mobile streaming sports; 25 mbps caused a lot of freezing and found it useless even when only having 2-3 devices connected.I received my refurbished Arris CM820A modem today and my customer service call and installation experience with Comcast went well.Here is the process, briefly: 1) Comcast customer service first checks if the modem has an End of Life restriction, meaning if Comcast still recognizes the modem brand and model as an accepted modem Comcast accepts for use; at this time, Comcast does accept and uses the Arris CM820A; 2) Comcast customer service inserts the CMAC code (a combination of numbers and letters found on the back of the modem) into their system to check if the modem is coupled with someone else's account (if it is attached to someone's else's account, it's a no go).After that, Comcast will couple your new modem with your account and send a connection signal, which may take 2-3 minutes as the modem's orange and green lights blink on and off as it cycles through its start-up. Be patient, my modem blinked and cycled through close to five minutes. Once all the green lights are on, browse through different pages on your browser to make sure your internet connection is working. I would also suggest you google "speed test" and check to make sure you are getting the speed you pay for, i.e. 25, 100, or 200 mbps/sec, etc.Don't forget to return to Comcast the modem you were renting!UPDATE: the modem stopped working. There was an outage for about half an hour, but the modem was plugged into a surge protector.
Sean Locke
Reviewed in the United States on September 19, 2016
Be careful buying this or any other product from Golden Gate Wholesale! I purchased this modem in August 2016. In March of 2017, I received a notification from Comcast that they detected a Comcast owned modem on my line and that they were going to charge me for a rental fee. After months of trying to figure out why Comcast was charging me for equipment that I had purchased, Comcast explained that the modem I had purchased belonged to Comcast and had been misappropriated before it came into my possession. As such, Comcast was going to continue to charge me for using equipment owned by Comcast. Amazon is "investigating" the situation and the number listed for Golden Gate Wholesale does not work. Beware.Otherwise, the product has worked well and is an improvement over my previous modem, which needed upgrading.
TechCraver
Reviewed in the United States on May 4, 2016
Comcast sucks, this modem is great. Sticking it to the "man" by not paying $$$ to Comcast to rent a modem. Only catch is they are forcing you to buy new modems every year practically because of their bogus "end of life" modems. Keep an eye out because they add new ones every year. This is all just ways to make you spend more money! If they are forcing you to buy a new one, you might as well save a little money and give it to another business then Comcast.Side note, make sure you do the self-installation when you sign onto their Internet services. They'll try and charge you $10, but some workarounds are trying to tell them you are "picking up their validation code at the store". Be weary of your bill since they hate people who have their own modem and try and tack on all sorts of charges to make up for their modem rental loss.Can't wait until there are some competitors and not monopoly in this industry. Or just move to a Google farm and get 1gb dl/ul for locals...
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