Customer Ratings & Reviews

I bought the S34 modem believing my router (capable of 350Mbps) would still allow me to reach into the 150 Mbps range. My outdated old modem only gave me 28 Mbps and the S34 bumped it up to 38 Mbps. I'm either missing something or Xfinity has me throttled. I'll update this review if I figure out a speed increase.

Went to best buy to purchase a modem for home use. didn't know which one to buy. The sales rep that assisted me was very helpful is making sure I purchased the correct one. The following day I was back up and working.

The modem installation was finished using a process from my cable provider and has worked as advertised ever sense.

Excellent product. Excellent price. The manufacturer is one of the best.

Overall great modem and I I noticed my download speed increased. It’s a overall great powerhouse modem

Great modem (we have Cox as our provider), easy installation

Upgraded to this modem from older Arris. I’ve had it a little over 2 months now and no issues or complaints. Some reviews complained about how hot the modem would get. We have on average 14 devices always connected to WiFi and it doesn’t get hot. It’s warm, but never hot. My old modem was always warm too. Feels relatively the same.

Seems to work OK so far but runs really hot. Hoping it holds up. I got this to replace an old one xfinity said wasn't capable of the speeds being provided, but I haven't noticed this new one being much faster. My youtube streams are at HD more often now, That's about it.

Replaced a bricked NetGear. Should have stuck with ARRIS. This works and does what it is designed to do.

Happy to be rid of service orovider’s modem. Arris surfboard works great!

Easy to setup, works seemlessly with spectrum, just had to call and give them the info off the bottom of the unit. Soon as they sent the signal and rebooted it, it works like a charm. I actually get speeds over what I pay for with it. My subscription through spectrum is 500mbps and I generally get around 550 or more. Way faster than my old cable modem.

Finally a modem that provides the speed I need without dropping connections!

Works fairly well. No issues outside of setup being a bit much.

my interwebs speed is as fast as usain bolt, good modem

Easy to set up. Follow the directions (yes, read it carefully), and I had no problem with using the App to register.

Great modem better than netgear the best on the market

Works great, not getting the download speed i wanted but that could be the 15 wifi devices i have or the router. idk.

Good modem..im a tech for the cable company anf i apprive.

Works well and has good range, even in my block house.

New cable installation easy hook up, running smooth. Saving on rental.