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S33 constant connection interruptions

  • October 19, 2025
  • 1 reply
  • 59 views

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We are experiencing daily connectivity issues. I have attached a current event log for reference. 

Best answer by SURFboard Moderator

When you experience connectivity issues, does it seem like the modem is rebooting on its own?

If not, we’ll need to isolate the issue by connecting a computer directly to the modem using an Ethernet cable. Then, monitor the connection to see if the internet drops while connected directly.

We recommend checking the cable signal levels within the modem. If the signal levels are out of the acceptable range, they can lead to the kind of connectivity issues you're experiencing.

When the signal levels are within the recommended range, your modem can maintain a stable, high-quality connection to the internet

Please refer to the link below for instructions on how to check your cable signal levels:

https://arris.my.salesforce-sites.com/consumers/articles/knowledge/S33-Cable-Signal-Levels

If you find that the signal levels are not within the recommended range, we suggest contacting your Internet Service Provider (ISP) to have them reviewed and adjusted as needed.

 

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When you experience connectivity issues, does it seem like the modem is rebooting on its own?

If not, we’ll need to isolate the issue by connecting a computer directly to the modem using an Ethernet cable. Then, monitor the connection to see if the internet drops while connected directly.

We recommend checking the cable signal levels within the modem. If the signal levels are out of the acceptable range, they can lead to the kind of connectivity issues you're experiencing.

When the signal levels are within the recommended range, your modem can maintain a stable, high-quality connection to the internet

Please refer to the link below for instructions on how to check your cable signal levels:

https://arris.my.salesforce-sites.com/consumers/articles/knowledge/S33-Cable-Signal-Levels

If you find that the signal levels are not within the recommended range, we suggest contacting your Internet Service Provider (ISP) to have them reviewed and adjusted as needed.