SSL certificate showing Obsolete connection settings after renewal

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anil jain

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Dec 22, 2017, 9:09:18 AM12/22/17
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Hello,

Just before few week back i have renew my ssl certificate for my windows server 2008 R2.
To renew ssl certificate i generate CSR through my IIS and then purchase ssl certificate from Symantec. Once i received certificate from Symantec, i installed it on my IIS and when i checked on my domain site its showing as below.

This page is secure (valid HTTPS).
 
Valid certificate
The connection to this site is using a valid, trusted server certificate issued by DigiCert SHA2 Secure Server CA.

Obsolete connection settings
The connection to this site uses TLS 1.2 (a strong protocol), ECDHE_RSA with P-384 (a strong key exchange), and AES_256_CBC with HMAC-SHA1 (an obsolete cipher).

Why its showing "Obsolete connection settings" ?

I google it and tried with IISCrypto but still showing the same. Please help me into this.

Thanks
Anil

George (Cloud Platform Support)

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Dec 22, 2017, 3:54:17 PM12/22/17
to Google App Engine
On your server, you might have a version of OpenSSL that was compiled without support for ECC (and thus ECDHE). You can run the nmap --script ssl-enum-ciphers -p 443 name-of-your-site to see what ciphers are supported on your server, and in which order. For more detail you may read the preferred answer to the "Apache SSL: 'an obsolete key exchange (RSA)'” question on stackoverflow. 
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