Customer Ratings & Reviews

This worked just fine until it didn't. It died after about 6 months of use. It ran very hot so I'm guessing it overheated. And this was used in a basement where the ambient temps were ~55 degrees and it was out in the open with no restrictions on airflow. I've now seen many other reviews citing overheating as a problem, so this appears to be an engineering failure. I've been using Surfboard modems for over 20 years now but this killed their reputation with me.

We love this modem. It’s excellent quality and provides us outstanding connection!

Easy to setup assuming you follow the directions. No issues so far.

We had an issue with the modem and Arris tech worked with us patiencely. Finally realize we had a defective product. Was replaced and now works great. For two different locations in the house.

Purchased this to replace my faulty Motorola and after a few days my internet connection started to fail every 30 min or so… after a month of complaints with my provider without finding issues with the connection I decided to put a fan on top of the modem and finally discovered that the issue was overheating… I don’t use anywhere close to my bandwidth limits and those are less than half of the spec limit for the modem so I believe that is pretty bad design…

It took a little setup. Some programming required from my provider. Once I connected with a knowledgeable it technician the setup went quickly.

Great modem, great value please check with your wi-fi carrier for compatibility as we had an issue requiring many phone calls.

This is a good functioning modem. Was a good purchase.

As expected. Comcast alerted me my Docis 3.0 modem was outdated, I went to this. After a short reset period, all worked as expected. Modem itself, provided no speed increase, unless service is updated.

Excellent and good value for money. Worked perfectly with Comcast

This is future proofing at it’s finest. Better than the last modem that I had

Save money with your own modem instead of renting one from the cable company!

Among the similar products on the Best Buy shelf, this SURFboard S33 looks to have a well known brand name, updated spec (DOCSIS 3.1) and 2 Ethernet port (1 2.5G and 1 1G). Even the price is a little high, I thought it would be a solid choice. Now, after hours of installation, I feel about it quite differently. The modem part is not bad. It was quick to resolve signal issues with Comcast and then got locks on signals, and then I can connect my laptop to either one of the ethernet ports. Then the disaster began. I had a medialink mwn-wapr300n WIFI router. It is about 6 years old, but still works well with my AT&T modem without any problem. For somehow it can never get DHCP connected with this modem. The event log at the medialink side showed the DHCP requests had been sent. But the modem side is stuck at the "connecting" stage. I tried swapping ports and cables, resetting both of them, power-cycling both of them, updating firmware, changing to static IP. None of the methods worked. This modem's web management UI only shows modem status. It does not show any diag info about its two Ethernet ports (such as the signal status, if there is any DHCP client request, event logs etc). Eventually, I have to go to Best Buy and get a new WIFI router (Netgear AX1800), and connected it to the modem's 2.5G port. Then it works fine with it. But then, its 1G port somehow stopped working. It looks even there are two ports, its internal ASIC or software only only function well with only one active connection. To summarize, the PRO is: At least, the basic modem functionality is working. The CONs are: 1. Web UI lacks down stream ports diag info. 2. Devices at the downstream ports may not get DHCP connected. 3. Two Ethernet ports cannot work at the same time.

The store associate was extremely helpful in helping me finding exactly the product I was looking for and explaining the differences in of the various levels of the product.

Very good for the value but I was expecting a little bit more

Works flawlessly and it does not drop the signal at all unlike the cable modem I got from my cable provider Optimum.

The modem was easy to set up. The iphone app worked just fine for initial setup. Just needed to make a quick call to Spectrum to get my internet back up and running. I, like a lot of other people, paired this modem with the Eero pro 6E, Like a match made in heaven. Looking forward to using this future proof setup for years to come.

This cable modem helps cut out the rental fee that some ISP charge for using their equipment.

We first bought a smaller unit, and it did'nt meet our needs. This unit is 100%

Very good customer support and app. Don’t know if it is an improvement until the WiFi is upgraded.