API call returning "The request was aborted: Could not create SSL/TLS secure channel."

[deanwright]

I am having some issues regarding an API call that was working perfectly last week and when attempting to refresh the data it is now returning the following: "The request was aborted: Could not create SSL/TLS secure channel.". We can get the result of the API from Postman and other tools but just won't work with Power BI. Have attempted re-downloading Power BI - ensuring it is updated and we are completely unsure what is happening. Does anyone have any recommendations?

Thank you.

Kind Regards,
Dean

[lbendlin]

Sounds like an expired certificate at the source?

[deanwright]

Thank you for the response, the API owners have mentioned that there has been no changes or expirations on their side. This is has been a headscratcher for myself and the API developers and they are starting to push back and say this is our issue to resolve. 

[lbendlin]

Look at the trusted root certificate store and see if anything is expired there. Try on another PC. Try after a restart, some certs renew with that.