I'm facing this issue today API failure: Net::ACME2::x::HTTP::Protocol: The response to the HTTP “HEAD” request from “ https://acme-v02.api.letsencrypt.org/acme/new-nonce” indicated an error (429, Too Many Requests):

This is due to a special rate limit that LE applied to Perl’s Net::ACME2 after they saw a spike in requests once the old DST root expired. Once that root expired, OpenSSL on those cPanel boxes interpreted every Let’s Encrypt certificate as expired, which caused cPanel’s AutoSSL to request reissuance…

API failure (429, Too Many Requests)

Help

JamesLE October 1, 2021, 3:23pm 3

You might also be encountering a temporary, stricter rate limit described in this thread (that's the same Perl module cPanel uses): New certs failed with "A rate limit prevents DCV"

3 Likes

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API failure (429, Too Many Requests)

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