te between the client and the server; or a firewall is blocking the communication; or the server is not in DNS. Check the network configuration.</p>

<h2 id="Verification-failure-of-the-server-certificate">Verification failure of the server certificate</h2>

<p>A verification failure of the server certificate would result in a failure when running the <a href="../man3/SSL_connect.html">SSL_connect(3)</a> function. <a href="../man3/ERR_print_errors_fp.html">ERR_print_errors_fp(3)</a> would display an error w