Performance Test Issues

Hey

I am trying to run performance test on a new site that I have built however I am having issues with a performance test. It may be due to the fact the site runs on an AWS Ubuntu server. Below is the error I receive.

stream_socket_client(): SSL operation failed with code 1. OpenSSL Error messages:
error:14094410:SSL routines:ssl3_read_bytes:sslv3 alert handshake failure
stream_socket_client(): Failed to enable crypto
stream_socket_client(): unable to connect to ssl://premium.wpmudev.org:443 (Unknown error)

Anyone ever come across this? Appreciate all the help I can get!

Thanks