adrianmihalko

I can't describe how much I hate Dymo developers. Long hours of annoyance were caused by their negligence.

So you are here, because you are looking for solution for "None of the ports were configured to use SSL certificate" 

- when you try to diagnose Dymo Web Service.

The good developers at Dymo forgot to delete/check/reinstall (call as you want) certificates when you uninstall/reinstall the web service.

After hours (days!) I found the solution.