<ddns-scripts>: <no-ip error with curl or uclient-fetch. ok with wget>

Package Name

ddns-scripts

Maintainer

@feckert

OpenWrt Version

SNAPSHOT 2026-2-10

OpenWrt Target/Subtarget

mediatek/filogic

Steps to Reproduce

1- configure ddns-scripts no-ip client.
2- don't install wget-ssl or curl
3- ddns-scripts will use uclient-fetch and no-ip will reply with nochg even when a change is needed.
4- install curl. set ddns-scripts to use curl. same error happens.
5- remove curl and install wget-ssl. no-ip is updated correctly.

Actual Behaviour

update should work with either uclient-fetch or curl.

no-ip support says badly formated string is being sent. but they didn't provide the wrong string.

Confirmation Checklist

• The package is maintained in this repository.
• I understand that issues related to the base OpenWrt repository or LuCI repository will be closed.
• I am reporting an issue for OpenWrt, not an unsupported fork.

The issue centers on the ddns-scripts no-ip client and its use of uclient-fetch or curl; start by tracing how each client constructs the update request and compare it with wget-ssl. Done means a no-ip address update succeeds with uclient-fetch and curl when a change is needed, rather than returning nochg.