Cloudflare DDNS update results in error

Netgear R7000 running FreshTomato Firmware 2021.8 K26ARM USB AIO-64K

Expected behavior: Saving DDNS config with force update results in CloudFlare IP change

Errors:
Tomato DDNS config page: “Last Result” is “GET returned HTTP error code 400”.
DDNS log ( nvram set debug_ddns=1 , tail -n 40 /tmp/mdu-cloudflare.txt ):

H GET /client/v4/zones/(zone ID)/dns_records?type=A&name=(hostname)&order=name&direction=asc HTTP/1.1
H Host: api.cloudflare.com
H Accept: /
H X-Auth-Email: (email address)
H X-Auth-Key: (API key)
H Content-Type: application/json
H
=I TLSv1.3 (IN), TLS handshake, Newsession Ticket (4)
=I TLSv1.3 (IN), TLS handshake, Newsession Ticket (4)
<H HTTP/1.1 400 Bad Request
<H Date: Tue, 28 Dec 2021 00:47:45 GMT
<H Content-Type: application/json
<H Transfer-Encoding: chunked
<H Connection: keep-alive
<H CF-Ray: 6c46c7725ab17aba-LAX
<H Set-Cookie: __cflb=0H28vgHxwvgAQtjUGU4vq74ZFe3sNVUZZpRzqmhWWEy; SameSite=Lax; path=/; expires=Tue, 28-Dec-21 03:17:46 GMT; HttpOnly
<H CF-Cache-Status: DYNAMIC
<H Expect-CT: max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
<H Set-Cookie: __cfruid=2e3c1a3c0c170a6a4e46fe98b5f512b66972111e-1640652465; path=/; domain=.api.cloudflare.com; HttpOnly; Secure; SameSite=None
<H Server: cloudflare
<H
<D 4d
<D {"success":false,"errors":[{"code":10000,"message":"Authentication error"}]}<D
<D 0
<D

‌

Comments (4)