installing slider extension i got Unknown SSL protocol error in connection to connect20.magento

[supriyakadam]

my magento version is 1.9.2.4 i got Unknown SSL protocol error in connection to connect20.magentocommerce.com:443 this error while instaling every extension how do i resolve this

[sherrie]

Hi @supriyakadam, this is likely happening as we've deprecated old protocols. To use Connect, your host will need to update cURL to support TLSv1.1.

Related: http://stackoverflow.com/questions/19384161/curl-error-35-unknown-ssl-protocol-error-in-connection-t...

Also, here's how you can check to see if cURL is supporting TLSv1.1 on your server (if your host doesn't know): http://stackoverflow.com/questions/27904854/verify-if-curl-is-using-tls