Modem stopped working? Solid blue light, strong connection, but no internet?- S33

  • 31 May 2024
  • 1 reply


So I have an Arris Surfboard modem and I've had it for about 3 years and have not had a single issue with it. Over the weekend my internet suddenly cut out and I couldn't figure out why. I had a strong connection and full signal strength on my wifi, however whenever I tried to open an app on my phone/tv/gaming device or browse the internet via my laptop it would say something along the lines that it wasn't connected to the internet or couldn't establish a connection.


I assumed it was some kind of issue with my ISP so I was finally able to get a tech to come out and look at it. The only solution they could offer was to give me one of their rental router/modems, which I don't want to do because I have my own equipment. Once they set up the new router/modem my issues were resolved leaving me to suspect there is an issue with the modem?


Is the modem the likely issue? Is that the expected lifespan of a modem 3 years? How can I troubleshoot this to find the exact issue and generate a different solution? Any advice would be greatly appreciated!


Best answer by SURFboard Moderator 3 June 2024, 22:08

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S33 is just a cable modem so to isolate the issue we would suggest you connect any device to the modem ethernet port for testing. Perform a power cycle on the modem then after modem reboots connect device to the modem LAN port then check for the internet.

In general, while there's no specific "expiration date" for a cable modem, it's wise to monitor its performance over time.