Since I installed Magento 2.2 I can't make the shipping methods work. (DHL & UPS)
The flat rate, table rate, free shipping, works fine.
In DHL I have (after a lot of procedures) my Access ID, My password, the default gatewayURL for test and production, my toolkit.zip with all the files and XML, and my Account number (import and export , I checked with both, but is no way to make it work, I been talking with DHL and they said isn't any connection on their side.
In UPS the same, I fill up all correctly, test with production mode or no, and with different options, and nothing at all.