cURL error 28: Connection timed out after 5000 milliseconds in pop-up plugin

cURL error 28: Connection timed out after 5000 milliseconds in pop-up plugin. I have enabled support but cant get this to work. I also cant use the snapshot managed backups it returns an error of Aw shucks, something went wrong :slight_frown: Instead of the beautiful response we expected, we got this:

<empty response>