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G34 DDNS generating 422 error at DDNS service

  • July 18, 2025
  • 1 reply
  • 16 views
P
The Certified
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I have struggled with a DDNS provider, changeip.com, because the DDNS from my Arris G34 are not working to update with the correct IP address. They insist I must contact Arris, as they have stopped working on the issue. The token is right, the U and P fields are right (apparently, password is obscured) yet changeip support insists the request is malformed. Can you help?

Here’s a shot of their log

Date Stamp Affected Result URL Query String Detected IP SSL User Agent
07/18/2025 12:01:05 UTC D:0  R:0  S:0 422 u=(Edited personal information) &p=***&hostname=pg.ddns.us,ZWQucGVycnkuaG9tZUBnbWFpbC5jb206MlBzSHJkOW5rY2Y&ip=(Edited personal information) (Edited personal information) 0 curl/7.69.1
07/17/2025 11:56:05 UTC D:0  R:0  S:0 422 u=(Edited personal information)&p=***&hostname=pg.ddns.us,ZWQucGVycnkuaG9tZUBnbWFpbC5jb206MlBzSHJkOW5rY2Y&ip=~(Edited personal information) (Edited personal information) 0 curl/7.69.1

Best answer by SURFboard Moderator

Try deleting the current DDNS setup from the G34’s interface. Then, re-enter the DDNS configuration by providing your:

  • DDNS account username
  • DDNS account password
  • DDNS hostname

This should help refresh the settings and make sure proper connectivity.

This topic has been closed for replies.

1 reply

S
Wi-Fi Warriors
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Try deleting the current DDNS setup from the G34’s interface. Then, re-enter the DDNS configuration by providing your:

  • DDNS account username
  • DDNS account password
  • DDNS hostname

This should help refresh the settings and make sure proper connectivity.

SURFboard Community Moderator Team
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