Hi,
I will fix this error"ERR_SSL_OBSOLETE_VERSION , , and to resolve it we need to update TSL 1.2 on Windows Server 2008 R2.
Error :
onnection - obsolete connection settings
The connection to this site is encrypted and authenticated using TLS 1.0, ECDHE_RSA with P-256, and AES_256_CBC with HMAC-SHA1.
TLS 1.0 is obsolete. Enable TLS 1.2 or later.
AES_256_CBC is obsolete. Enable an AES-GCM-based cipher suite.
Thank you