Customer Ratings & Reviews

My new modem is great my why is faster than B4. I recommend this product and everything. I meant to say my Router I purchased from Best buy

We have been paying the monthly equipment rental for xfinity modem for YEARS!!! We were constantly having to go in and swap with a different one every 6 or months, with issues starting after about a month or so. They just wouldn’t stay connected. Last straw was the new xf1 that was supposed to be the best ever. Replaced after 3 days and then never had a full connectivity day after that. Had enough so we got this one and haven’t had one issue since!!!! So glad to have made this purchase!! Curbside pickup has it ready within 5 min

Bought this modem so I could add an Xfinity voice line for my fax machine. I wanted to make sure that I wouldn't have any compatibility issues, and I have had great experiences with other Arris modems. The installation and setup was very simple, and was all completed through Xfinity's automated activation system. Ordered my voice line and was also able to double my internet speed from 500M to 1G because I'd upgraded to a DOCSIS 3.1 modem. Very happy with the purchase.

This modem dilivers well in term of spec and reliability. I’ve used it for a month, no issue. Very well priced when on sale.

Great modem with capability for Comcast voice/phone service, however... I am nearly convinced that Comcast intentionally makes it painfully difficult to use your personally OWNED equipment. It took no less than 6 submissions of the MAC ID to Comcast BY THE COMCAST TECHNICIAN at my house before it finally came online. The handset icon for the phone service was also lit up for a few days, however I did not have a phone to connect at the time. However a day or two before connecting a phone to the phone jack on the modem, the handset icon was no longer active. Sure enough, when connecting my phone to the modem, there was no dial tone. After getting passed around to about 4 other support techs, nothing improved. I was told by the last tech that the issue would be corrected and the service will be online within 2-3 hours. LOL That's how the get you off the call. Next morning, still no service. I waited 2 days before dealing with Comcast support again, got passed around a few times again, but finally ended up with a tech that discovered that the MTA MAC ID (for the voice service) was not even populated for some reason. Once he populated it, the modem rebooted...the phone worked, but then the internet service was offline. Fortunately he was able to re-submit the MAC ID for the internet service and finally all has been online and stable. It really does appear as if they want you to regret attempting to use your own modem and not pay them the additional monthly rental fee for their equipment. Most people that I know would have given up and gone that route, which is only beneficial to Comcast and not their subscribers. Love the modem and would definitely recommend! Good luck with Comcast, and don't give up. Just keep trying and they will be the ones who eventually give up and allow your equipment to operate.

Straight forward install, worked well as xFinity replacement. Quite fast too.

Needed a specific upgrade for home use and after research, decided on this modem. Easy to set up and has worked like a champ, especially given I telework a good portion of the time. Needed a replacement after 5 years and this modem meets every requirement and is extremely reliable. Solid purchase for right now--happy it was available! Highly recommended.

So after reading and doing some research, stumbled upon this beastly device. The problem is that I couldn't actually use this thing. Reason being, not compatible with Spectrum. Found out the hard way by calling them up to activate the modem. Long story short, not on their list of approval for 1Gig or any of their internet plans, but the 8300 model is though?! Sucks due to the fact that this model has pretty much everything needed to get started on the spectrum internet( Lans,Tele Ports). Gave it a 5 star so those that have Spectrum or is thinking of switching/getting Spectrum know the answer

Definitely don't disappoint. I've been using this unit for almost a month now and zero problems. feast speed, great quality, and one of the few modems that you can also connect your telephone. Returning my Xfinity modem asap to get rid of that pesky monthly fee.

I purchased this modem because the one I had wasn't getting me the speeds I pay for. I have a 600mbps plan with Xfinity and with this modem I get over 700mbps! It was extremely easy to set up from unboxing to online was about 15 minutes and it's compatible with Xfinity voice so that's a plus.

Easy to setup with Comcast. Superfast speeds and able to connect multiple devices.

Just to save you the time that I wasted over the weekend. If you install this modem AND you have Xfinitiy's 1Gb Xfi Advantage -- that's the high-speed plan that includes unlimited data -- Comcast will remove the unlimited data feature from your account (plan details here: https://www.xfinity.com/support/articles/xfi-advantage-faqs). So, yes, you'll still have 1Gb speed, but you will be paying for data in excess of 1Tb each month. If that works for you, then go for it. My family exceeds that each month, so any savings I might have gotten by having my own modem would have been canceled out (and then some). Unfortunately, I didn't learn this until I went through the installation process, called Comcast support twice, waited on hold and finally spoke with a helpful rep who told me the bad news.

I really didn't expect my Internet speed to improve with this Cable modem verses Xfinity's Cable modem. However, I noticed a substantial increase in performance. I don't believe my Xfinity Modem was very old, but the performance of this modem is excellent.

I purchased this-(my 3rd and final try) unit as Mediacom informed me it would be compatible with their system-(as the two previous units were). After about 7 hours of phone calls, I was told by a supervisor that this unit would not connect to their system! I'm sure this is a good unit. I bought a lesser expensive one for my daughter and it works great.

Working wonderfully with my Xfinity 600 Mbps package. Easy to set up via a quick call to Xfinity so they could provision the new modem. Connected my Orbi once it was all clear with Xfinity and was getting 500+ Mbps speed on my iPhone throughout the house within 20 minutes. There might be something to getting a piece of equipment made specifically for your ISP.

I bought this to replace a Surfboard that was a tad outdated. Paired with an appropriate router, I’m able to take full advantage of my high speed internet via Docsys 3.1. Definitely a great deal, worth the investment if you’re doing a lot of steaming. Very easy install.

We have Comcast 1Gig internet and upgrading to this modem really helped increase our network speed and reliability. The modem has been very reliable and I believe it is a much better unit than the Netgear we previously used.

Works Great !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

This Arris T25 modem works perfectly for our Xfinity with Voice service. You will also need a separate router to have WiFi throughout your home. It still beats out renting a gateway from your provider in the long run! This was set up and activated by the Xfinity technician with our new service, so I cannot attest to the ease or difficulty of installation. However, I watched him and it seemed pretty straightforward.

I like the modem as a whole but I didn't read the ad well. My last modem had a built in Wifi so I had to go back and get three pods. I now have my internet phone hooked up through this modem and I can get rid of my old land line that gave me 100 spam calls to 4 real calls a month.