Smush API error | WordPress.org

I am getting this error:

cURL error 28: Connection timed out after 10001 milliseconds
There was an error connecting to the image compression server. This could mean either the server is temporarily unavailable or there are connectivity issues with your internet connection. Please try later.

I can see this has been addressed before and the posts have been marked as resolved with no apparent resolution, how do I get around this?

 

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