Let's Debug

Test result for njds15.ddns.net using http-01

Error
njds15.ddns.net has an A (IPv4) record (87.123.200.8) but a request to this address over port 80 did not succeed. Your web server must have at least one working IPv4 or IPv6 address.
A timeout was experienced while communicating with njds15.ddns.net/87.123.200.8: Get "http://njds15.ddns.net/.well-known/acme-challenge/letsdebug-test": context deadline exceeded

Trace:
@0ms: Making a request to http://njds15.ddns.net/.well-known/acme-challenge/letsdebug-test (using initial IP 87.123.200.8)
@0ms: Dialing 87.123.200.8
@10000ms: Experienced error: context deadline exceeded
A test authorization for njds15.ddns.net to the Let's Encrypt staging service has revealed issues that may prevent any certificate for this domain being issued.
Fetching http://njds15.ddns.net/.well-known/acme-challenge/8F_Wn4tJeefr8LgMoyPgxMAQduCa3o4LCXi9ee5PjAE: Timeout during connect (likely firewall problem)
Debug
Requests made to the domain
Request to: njds15.ddns.net/87.123.200.8, Result: [Address=87.123.200.8,Address Type=IPv4,Server=,HTTP Status=0], Issue: ANotWorking
Trace:
@0ms: Making a request to http://njds15.ddns.net/.well-known/acme-challenge/letsdebug-test (using initial IP 87.123.200.8)
@0ms: Dialing 87.123.200.8
@10000ms: Experienced error: context deadline exceeded

Debug
A and AAAA records found for this domain
njds15.ddns.net. 0 IN A 87.123.200.8
Challenge update failures for njds15.ddns.net in order https://acme-staging-v02.api.letsencrypt.org/acme/order/5751349/230062254
acme: error code 400 "urn:ietf:params:acme:error:connection": Fetching http://njds15.ddns.net/.well-known/acme-challenge/8F_Wn4tJeefr8LgMoyPgxMAQduCa3o4LCXi9ee5PjAE: Timeout during connect (likely firewall problem)
Debug
The IANA public suffix is the TLD of the Registered Domain
The TLD for njds15.ddns.net is: net
Debug
The current status.io status for Let's Encrypt
Operational

Submitted Jan 27 13:01:32 2021. Sat in queue for 1ms. Completed in 21s. Hide verbose information.