Unable to Update due to cURL error

Hi WPMU Dev,

I have a development site running on localhost and when trying to update the WPMU Dev Dashboard plugin, it fails and I get the following error:

Your server had a problem connecting to WPMU DEV: "cURL error 28: Operation timed out after 15000 milliseconds with 0 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/api/dashboard/v1/ with a POST HTTP request via fsockopen or CURL?"

I use XAMPP and currently run PHP 7.0.1

Any ideas?

Kind regards,

Simon