I just resolved my Comcast Xfinity modem with this one. And it was really easy to call them & have to monthly charge removed.

This is a great modem to use with Comcast and is on their approved list. I have installed a couple of them and they are easy to set up and perform well. Note that it is a modem only - no built-in WiFi or switch - so you will need other equipment if you want WiFi or if you connect more than one device.

This modem is the best to replace comcast I just did the same and it works great.

The Zoom - DOCSIS 3.0 CABLE MODEM is ideal and the cheapest of any that Best Buy offered. It also has 8 channel bonding for downstream and 4 channel bonding for upstream. This is better than the Motorola Surfboard SB**61 model that is more expensive and only has 4 channel bonding for both up and downstream. Very easy to setup with Comcast, just connect the modem with the existing cable from old modem, connect Ethernet to a single computer from modem, do not connect with a router just yet, plug power supply in to modem and let it start configuring and bonding to each channel for at least 20 min, turn on computer that is connected to modem and then call Comcast to let them know you have purchased your own modem, they will connect you to the correct department and have your serial number and mac address of new modem ready to give to them to start the initializing of your new modem.

Any cable modem that supports the DOCSIS standard will work with Comcast - but keep in mind that DOCSIS 2.0 is limited to a single channel, so you will be stuck at <40mbps. If you're paying for speeds faster than that (or plan to at any point in the future) you'll want to get a DOCSIS 3.0 modem.

Also bear in mind that many Comcast customers have a modem that also includes a "router," meaning it has built-in wifi and connections for multiple wired devices. I prefer to keep my router and modem separate, but if you like the simplicity of a single unit (or aren't sure how to set up a dedicated router) you'll want to make sure you buy a modem with wifi/router built-in.

Just about any modern cable modem will work just fine, but there are several that are actually approved by Comcast to work with xfinity...or xfinity certified. I know the Motorola surfboard and zoom modem both are.

Since Comcast uses cable modems any cable modem should work. If you already have a router then just purchase the cable modem but make sure it's cable modem. Some companies have issues with older routers especially LINKSYS so you may want to call Comcast and see if there are any that aren't compatible. Otherwise you can just purchase a modem/router combo. A bit more expensive but it's 2 in 1. I purchased the zoom to replace Time Warner Modem and it works great.

Zoom - DOCSIS 3.0 High-Speed Cable Modem - Black
Is a good option

I found that the Motorola Arris works best I tried to zoom modem and had nothing but problems

Go with the Netgear C3700-100NAS. It works well with Comcast/Xfinity. The wifi is dual band and has decent range.

Yes I bought mine to replace my comcast modum. As long as you buy a DOCSIS 3.0 or higher. The zoom works great and is a breeze to hook up.

This modem has no VoIP capabilities.

I'm afraid, you may not. This modem is just for wired Internet only. Converts Comcast coax cable to ONLY one ethernet wire. There is no phone options.

Unfortunately, you have to use the cable providers device if you also have their phone service, or purchase a cable modem that has this ability. There are a limited number of models, but I believe that Arris XFinity TG862G would do it.

Yes you can replace comcast with this and save 8 bucks with this cable modem. You will have to call them to activate the modem.

I own a different Zoom DocSis modem for my Comcast network and yes, I run a VoiP phone off it, no problems. Check with your provider to make sure the modem you choose is compatible.

I recently updated my cable modem with the Zoom DOCSIS 3.0 and I am very pleased with the results.

Should definitely work. That's what I'm using and I have Comcast.

While Comcast uses the latest protocol they call DOCSIS 3.0 modem rented at $8 + tax/month, figure a ZOOM modem from Best Buy at $70 + tax one shot and yours to keep and brand new, not recycled.

I have replaced the unit per instructions from ATT. Jobe done

Yes I stream Netflix with no issues

Yes, it works great with streaming movies. We have 4 televisions connected to Netflix, Hulu and Yahoo movies at once without any issues. We cancelled our cable television service months ago and have been using only streaming services.

Yes, we have been able to stream movies just fine using this modem.

Yes. I stream Netflix and SlingTV via Roku3 everyday. If there are issues, it is usually the app, not the modem. The modem has not been to blame yet.

No problem with Comcast Xfinity

I am currently answering emails, playing an online game while streaming movies. I have had no issues with the modem keeping up, but we also have a 20 gb/s plan with our ISP.

it has been working excellent for streaming movies

Absolutely yes. We stream multiple shows at once with no problems.

No problems detected even after several months of use

Yes, this product can be used for streaming movies.