Running WPMU DEV plugin on XAMPP Development Environment

Hi,

I'm getting a problem developing in XAMPP on my local machine when signing in to the dashboard.

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Your server had a problem connecting to WPMU DEV: "Operation timed out after 15000 milliseconds with 22469 bytes received" Please try again.
If this problem continues, please contact your host with this error message 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?"

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CURL is enabled.

This is the PHPINFO output for curl

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cURL support enabled
cURL Information 7.39.0
Age 3
Features
AsynchDNS Yes
CharConv No
Debug No
GSS-Negotiate No
IDN Yes
IPv6 Yes
krb4 No
Largefile Yes
libz Yes
NTLM Yes
NTLMWB No
SPNEGO Yes
SSL Yes
SSPI Yes
TLS-SRP No
Protocols dict, file, ftp, ftps, gopher, http, https, imap, imaps, ldap, pop3, pop3s, rtsp, scp, sftp, smtp, smtps, telnet, tftp
Host i386-pc-win32
SSL Version OpenSSL/1.0.1i
ZLib Version 1.2.7.3
libSSH Version libssh2/1.4.3

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Is this something others have come across before?

Thanks

Tris