Unable to establish SSL connection on Linux

I need assistance on my Debian 8.11. It seems that I cannot SSL connection working. I get this error every time I use git and wget: “ gnutls_handshake() failed: the TLS connection was non-properly terminated. Unable to establish SSL connection .” On the side of curl, I get this: “ curl: (28) Operation timed out after 0 milliseconds with 0 out of 0 bytes received .” How do I get rid of this roadblock?

Can you enable verbose output and post it here with what you see before the error occurs?

Please check the link below