Hi @DTS Engineer any update?

This was successful on my home wifi that has IPv6 enabled by the ISP. It is also successful on the office wifi with IPv6 enabled by the ISP.

The curl command works for me on my mac: curl -v https://qa-jen.noknoktest.com/.well-known/apple-app-site-association Host qa-jen.noknoktest.com:443 was resolved. IPv6: 2600:1900:4000:6642:: IPv4: (none) Trying [2600:1900:4000:6642::]:443... Connected to qa-jen.noknoktest.com (2600:1900:4000:6642::) port 443 ALPN: curl 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 / [blank] / UNDEF ALPN: server accepted h2 Server certificate: subject: CN=*.noknoktest.com start date: Jan 25 00:00:00 2024 GMT expire date: Jan 13 23:59:59 2025 GMT subjectAltName: host "qa-jen.noknoktest.com" matched cert's "*.noknoktest.com" issuer: C=US; O=DigiCert Inc; OU=www.digicert.com; CN=RapidSSL TLS RSA CA G1 SSL certificate verify ok. using HTTP/2 [HTTP/2] [1] OPENED stream for https://qa-jen.noknoktest.com/.well-known/apple-app-site-association [HTTP/2] [1] [:method: GET] [HTTP/2] [1] [:scheme: https] [HTTP/2] [1] [:authority: qa-jen.noknoktest.com] [HTTP/2] [1] [:path: /.well-known/apple-app-site-association] [HTTP/2] [1] [user-agent: curl/8.6.0] [HTTP/2] [1] [accept: /] GET /.well-known/apple-app-site-association HTTP/2 Host: qa-jen.noknoktest.com User-Agent: curl/8.6.0 Accept: / < HTTP/2 200 < server: nginx/1.20.1 < date: Thu, 10 Oct 2024 21:20:50 GMT < content-length: 660 < accept-ranges: bytes < etag: W/"660-1695685549000" < last-modified: Mon, 25 Sep 2023 23:45:49 GMT < { "webcredentials": { "apps": [ "SG9R4B6BLT.com.noknok.ios.tutorialappplus", "26L5NKC893.com.noknok.ios.cordovatutorialapp", "SG9R4B6BLT.com.noknok.ios.cordovatutorialapp", "SG9R4B6BLT.com.noknok.s3express", "SG9R4B6BLT.com.noknok.droneshop" ] }, "applinks": { "apps": [], "details": [ { "appID": "SG9R4B6BLT.com.noknok.ios.tutorialappplus", "paths": [ "" ] }, { "appID": "26L5NKC893.com.noknok.ios.NokNokPassport", "paths": [ "" ] }, { "appID": "SG9R4B6BLT.com.noknok.ios.passport", "paths": [ "*" ] } ] } } Connection #0 to host qa-jen.noknoktest.com left intact