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W21 firmware versions

  • November 26, 2024
  • 4 replies
  • 213 views

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Can you tell me the latest firmware numbers for the W21 series? I was gifted 2 of these and I’m trying to update the firmware. Apparently that is usually automatic, but I want to be sure. 

Best answer by SURFboard Moderator

The MAX router checks for new firmware:

  1. Between 2am and 5am daily
  2. After power cycle (ex. unplug power and plug back)
  3. During OnBoarding (on the "Check Under the Hood" screen),

When the new firmware is detected, the firmware is updated automatically. The mAX router reboots after the firmware update is completed.

This topic has been closed for replies.

4 replies

plemans
Juggernaut
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  • Juggernaut
  • November 26, 2024

I haven’t found a list anywhere of the actual firmware versions. And with the W21 only having an app based process, there isn’t any way to manually update if there was


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The MAX router checks for new firmware:

  1. Between 2am and 5am daily
  2. After power cycle (ex. unplug power and plug back)
  3. During OnBoarding (on the "Check Under the Hood" screen),

When the new firmware is detected, the firmware is updated automatically. The mAX router reboots after the firmware update is completed.


Forum|alt.badge.img
  • Author
  • The Many
  • November 29, 2024

So then, how do you I check the current firmware version?


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The firmware version displayed in the SBC app indicates the current firmware version of your router.