DCV failed - connection timeout

AutoSSL is failing on renewing a cert for a subdomain, when I view the log there are DCV warnings followed by TOTAL_DCV_FAILURE. Chrome blocks connection to the site due to expired/invalid cert, however I noticed it is always redirecting to https. Force SSL is not enabled for this subdomain and there are no .htaccesss rewrite conditions forcing it either. I'm using Sectigo as the AutoSSL provider, there is no .txt file present in the pki-validation folder. The root domain is experiencing no issues but it's cert will be renewed in the next 15 days so I want to ensure that completes without issue. 10:20:33 AM WARN Local HTTP DCV error (redacted.com): The system failed to fetch the DCV (Domain Control Validation) file at "http://redacted.com/.well-known/pki-validation/redacted.txt" because of an error: The system failed to send an HTTP (Hypertext Transfer Protocol) "GET" request to "http://redacted.com/.well-known/pki-validation/redacted.txt" because of an error: Could not connect to 'redacted.com:80': Connection timed out. WARN Local HTTP DCV error (www.redacted.com): The system failed to fetch the DCV (Domain Control Validation) file at "