Customer Ratings & Reviews

I picked up the S33 October of 2024, it died 07/04/2025. The modem worked fine for months and now the modem is only capable of 150mbs down if your lucky. Two Spectrum technicians spent 3 hours playing around with everything. $200 planned obsolescence.. Enjoy your Freedumb!

In the beginning I would have given it 5 stars, however I waited which I am glad for. After 4 months of it running the internal system went bad. Had to return and get another one. The reason for the 4 stars really is because of Best Buy’s amazing service plans. If it’s broke they swap it. At least for items like this that is what I have seen. Got the new one installed and everything setup and it’s working like a champ, currently on month 5 so hoping it was just a bad part in the first one

Working well with mediacom. Have 1 gb line, geting 700mg on wiered connection

No issues here. Pretty easy to set up and good connection to my mesh routers.

Do not get this to work with Xfinity gig speed as it is not compatible with it, Xfinity blames Arris, Arris blames Xfinity.

I have 1 gig plan. This modem can't get faster than 325 mbps. 3 different techs tried everything. Could be Cox, could be this modem, not sure but it didn't get the job done.

I waited a few week before I installed it. When connected to power it was dead on arrival. Best Buy would not accept a return or exchange because it was more than 15 days. Now I'm dealing with the Manufacturer for a warranty exchange for a product that never turned on. Not a simple process.

This modem is perfect. Finally able to connect to high speed internet.

This modem lasted less then a month and the went out. It was trying to rest it self all the time spectrum couldn’t even run a line test. I ended up going with a Motorola hopefully that will be better.

the best modem your money can buy. it is capable of great speeds!

Had it for just a little over a year now. Was working fine until i did a routine power cycle last night. Would no longer send a signal or connect to service. Troubleshooting with the ISP also didnt help as everything was fine on their end. They couldn’t see the modem was sending a signal anymore. Tried to do a factory reset several timees and that wouldn’t work. Thing is a piece of junk. Never going to purchase another product from them if they don’t last long. This thing wasnt cheap either. DO NOT PURCHASE THIS!!!

One of better modems to use with Xfinity service especially Gig.

Easy to install with app. Worked immediately. Would recommend.

First one I purchased fell apart when I got it out of the box. The top separated from the bottom. Took it back and got a replacement. That was in 09/23. This month 07/24, my upload speeds were at 10mbs instead of over 100mbs. Disconnected the coax cable and the top separated from the bottom. Shaking it you can hear pieces rattling. Had geek squad protection and got most of the purchase price back and went with a netgear modem.

Strange option of using two cables for 3.5ghz speed but need another one from your ISP. Had massive packet losses at random times really interfering with gaming. Wanted to blame ISP but picked up a 3.1 Modem from Netgear and everything is great. Returning this thing today

This is not a good system to use; we returned this to BestBuy. The app was awful; it couldn't interact with Spectrum. I would not recommend it.

Keeps re-setting itself and then needs to re-connect, which takes about 3 minutes. Then will work for about 10 minutes and then reset again. Perfect for families looking to cut down on screen time as you won't be able to stream anything. Called customer support and after a long hold time, they hung up when I went to retrieve my laptop as instructed (about 30 seconds). Stay away.

Ran well for almost 90 days, but the ventilation is very poor and the S33 runs super hot, even in a well ventilated area. Mine eventually cooked itself right at the 3-month mark and failed to maintain a connection. My ISP said they have no service outages and my old modem is still able to connect, so the only bad link in the chain is the new S33 modem. I expected much better from Arris than a dead $200 modem in 90 days.

The best modem you can get at a reasonable price!!

Does exactly what it should, no issues. Easy Setup.