DuckDNS addon not renewing letsencrypt certificate

[googanhiem]

Describe the issue you are experiencing

Yesterday my HA instance starting having external connection issues with DuckDNS and is having problems now renewing its certificate due to an DNS error. Not sure if the cert protocol has changed or if the service has done (no indications online is the issue).

What type of installation are you running?

Home Assistant OS

Which operating system are you running on?

Home Assistant Operating System

Which add-on are you reporting an issue with?

Duck DNS

What is the version of the add-on?

1.15.0

Steps to reproduce the issue

1. Certificates expire
2. restart duckdns
3. error occurs
   ...

Anything in the Supervisor logs that might be useful for us?

No response

Anything in the add-on logs that might be useful for us?

ERROR: Challenge is invalid! (returned: invalid) (result: ["type"]	"dns-01"
["status"]	"invalid"
["error","type"]	"urn:ietf:params:acme:error:dns"
["error","detail"]	"DNS problem: SERVFAIL looking up TXT for _acme-challenge.XXXXXXX.duckdns.org - the domain's nameservers may be malfunctioning"
["error","status"]	400
["error"]	{"type":"urn:ietf:params:acme:error:dns","detail":"DNS problem: SERVFAIL looking up TXT for _acme-challenge.XXXXXX.duckdns.org - the domain's nameservers may be malfunctioning","status":400}
["url"]	"https://acme-v02.api.letsencrypt.org/acme/chall-v3/XXXXX/XXXXXX"
["token"]	"XXXXXXXX"
["validated"]	"2022-10-02T11:00:44Z")

Additional information

I'm also not using aliases (as I'm aware of that issue).

It has worked for 2 years with no settings changes, and only yesterday started experiencing issues.

I've tried rebooting hosts, core, add-ons, deleting cert files (followed by a full reboot), changing DNS settings, taking nginx out of the equation and changing ports and forwarding rules - no change.

[ludeeus]

DuckDNS is having issues, run it again when that is resolved.
There is nothing that can be done by the add-on.

[googanhiem]

@ludeeus anywhere I can track the duckdns issue.. haven't seen a status page

[ludeeus]

You have to ask duckdns about that.

[googanhiem]

They've pointed me to this: https://intodns.com/duckdns.org