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Constant rebooting with G20

  • August 31, 2025
  • 1 reply
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A week ago my G20 started to reboot itself every 3 to 5 minuets . I contacted My ISP Comcast about it and they checked the signal and it was sending the proper 600 megs I am supposed to receive , but then in about three min the modem would reboot itself and reconnect again for about three to five minuets I cannot use this modem like this I would like a refund or replacement unit.     thank you.

Best answer by SURFboard Moderator

We recommend checking the cable signal levels within the gateway. If the signal levels are out of the acceptable range, they can lead to the kind of rebooting 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/G18-G20-Cable-Signal-Levels

The cable signal levels displayed on the interface page reflect the signals being transmitted by your Internet Service Provider (ISP).

If you notice that these signal levels are outside the recommended range, we suggest contacting your ISP to have them reviewed and adjusted accordingly.

While ISPs may have their own approved signal ranges, for this gateway to function properly, the signal levels must align with the acceptable values outlined in the reference article provided.

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1 reply

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We recommend checking the cable signal levels within the gateway. If the signal levels are out of the acceptable range, they can lead to the kind of rebooting 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/G18-G20-Cable-Signal-Levels

The cable signal levels displayed on the interface page reflect the signals being transmitted by your Internet Service Provider (ISP).

If you notice that these signal levels are outside the recommended range, we suggest contacting your ISP to have them reviewed and adjusted accordingly.

While ISPs may have their own approved signal ranges, for this gateway to function properly, the signal levels must align with the acceptable values outlined in the reference article provided.