Cannot save DNS IPv6 address
Answers
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I don't know why, I have exactly the same problem
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Hmm weird, as the last resort try to reset your modem to the factory settings and try again.
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@Andrei_ref_R7VK1 said:
Hmm weird, as the last resort try to reset your modem to the factory settings and try again.That doesn't change anything, I reset the modem
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@Bois_3ISKD said:
@Andrei_ref_R7VK1 said:
Hmm weird, as the last resort try to reset your modem to the factory settings and try again.That doesn't change anything, I reset the modem
Very weird behavior
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@Andrei_ref_R7VK1 said:
@Bois_3ISKD said:
@Andrei_ref_R7VK1 said:
Hmm weird, as the last resort try to reset your modem to the factory settings and try again.That doesn't change anything, I reset the modem
Very weird behavior
Yes, indeed.
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Contact support for this bug, probably bad update..
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I have the same problem
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Did you upgrade the firmware to the latest?
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@junozero said:
Did you upgrade the firmware to the latest?Shouldn't Fizz be the ones updating their modem ?
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@Dac C. said:
I want to set my DNS to Cloudflare (for families), ie.1.1.1.3 1.0.0.3 2606:4700:4700::1113 2606:4700:4700::1003
Upon save, the Fizz modem is mangling the IPv6 address.
It's a CODA-4680-FIZ version 7.3.5.1.2b21
This was working fine a few weeks ago.
Help?

I have the new modem CODA5610Q, it's on 7.3.5.1.2b22 firmware version and DNS IPv6 are saved successfully.
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@Bois_3ISKD said:
@junozero said:
Did you upgrade the firmware to the latest?Shouldn't Fizz be the ones updating their modem ?
Yes, sometimes you just need to reboot it to have the latest firmware installed.
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@Andrei_ref_R7VK1 said:
@Bois_3ISKD said:
@junozero said:
Did you upgrade the firmware to the latest?Shouldn't Fizz be the ones updating their modem ?
Yes, sometimes you just need to reboot it to have the latest firmware installed.
Okay, thank you, I'll restart it.
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@Bois_3ISKD said:
@junozero said:
Did you upgrade the firmware to the latest?Shouldn't Fizz be the ones updating their modem ?
Check if you can upgrade to 7.3.5.1.2b22 firmware version.
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I rebooted.
Still at version CODA-4680-FIZ (2A) 7.3.5.1.2b21
Still the same problem.
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Contacted support.
They told me to set it at the device level. Very generic advice.
Did not acknowledge this was a bug.
Oh well. 🤷
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@Dac C. said:
Contacted support.They told me to set it at the device level. Very generic advice.
Did not acknowledge this was a bug.
Oh well. 🤷
Unfortunately, it's very difficult to make oneself understood by the support team.
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