We are have the same issue as @martin_bwl. In Our case the curl connection to our server is: Trying 34.102.3.92:443... Connected to .. (.**..) port 443 (#0) ALPN: offers h2,http/1.1 (304) (OUT), TLS handshake, Client hello (1): CAfile: /etc/ssl/cert.pem CApath: none (304) (IN), TLS handshake, Server hello (2): TLSv1.2 (IN), TLS handshake, Certificate (11): TLSv1.2 (IN), TLS handshake, Server key exchange (12): TLSv1.2 (IN), TLS handshake, Server finished (14): TLSv1.2 (OUT), TLS handshake, Client key exchange (16): TLSv1.2 (OUT), TLS change cipher, Change cipher spec (1): TLSv1.2 (OUT), TLS handshake, Finished (20): TLSv1.2 (IN), TLS change cipher, Change cipher spec (1): TLSv1.2 (IN), TLS handshake, Finished (20): SSL connection using TLSv1.2 / ECDHE-RSA-AES256-GCM-SHA384 ALPN: server accepted http/1.1 Server certificate: subject: CN=.****. start date: May 6 19:38:16 2023 GMT expire date: Aug 4 19:38:15 2023 GMT subjectAltName: host ".****." matched cert's ".****." issuer: C=US; O=Let's Encrypt; CN=R3 SSL certificate verify ok. using HTTP/1.1