I'm using Magento version 2.2.5. I am having this problem when checkout, it keeps displaying
"Sorry, no quotes available for this order at this time"
in Fedex shipping method.
When we select country India it show - Sorry, no quotes available for this order at this time.I entered the right address, right zip-code and also the right country.
I used test credentials of FedEx account
Select other countrey like - Australia work fedex and Flat rate shipping