Certbot renew suddenly failing (Challenge failed for domain)

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Let's Encrypt (usually) uses IPv6 if it's available (AAAA record present in DNS). Not sure why that's not happening here. :thinking:

Screenshot_20250509_152651_Samsung Internet
Screenshot_20250509_152651_Samsung Internet1440×1742 175 KB

Screenshot_20250509_152726_Samsung Internet
Screenshot_20250509_152726_Samsung Internet1440×1747 163 KB

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