problem connecting WPMU DEV from dashboard

After installation I'm prompted from the WP admin to login to WPMU DEV. On doing so I get the following error message

Your server had a problem connecting to WPMU DEV: "SSL read: error:00000000:lib(0):func(0):reason(0), errno 0" Please try again.

If this problem continues, please contact your host and ask:

"Is php on my server properly configured to be able to contact https://premium.wpmudev.org/wdp-un.php with a GET HTTP request via fsockopen or CURL?"

Curl is enabled on this host. Please advise, thanks.