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kovidgoyal · 01-16-2016, 03:42 PM

I found a windows 7 VM where I could reproduce the issue, it was caused by the needed root certificate not being installed in the windows certificate store, as I thought.

You can manually download and install the root certificate if you want, its name is DST Root CA X3 or simply installing all windows updates should the trick (unless your windows is locked down by some kind of group policy.

The root certificate is here: https://www.identrust.com/certificates/ie.html

01-16-2016, 03:42 PM	#19
kovidgoyal creator of calibre Posts: 45,929 Karma: 29579516 Join Date: Oct 2006 Location: Mumbai, India Device: Various	I found a windows 7 VM where I could reproduce the issue, it was caused by the needed root certificate not being installed in the windows certificate store, as I thought. You can manually download and install the root certificate if you want, its name is DST Root CA X3 or simply installing all windows updates should the trick (unless your windows is locked down by some kind of group policy. The root certificate is here: https://www.identrust.com/certificates/ie.html