This started happening over the weekend and continues to happen. I think Fedex may have made changes that rendered the Magento Fedex module incompatible.
When trying to receive quotes at checkout it drops the following error into the log:
main.CRITICAL: Bad Request {"exception":"[object] (SoapFault(code: 0): Bad Request at /vendor/magento/module-fedex/Model/Carrier.php:543)"} []
The line in the file:
$response = $client->getRates($ratesRequest);
Is anyone else having trouble with their Fedex integration?
UPDATE:
It started working again on its own. Fedex web services may have just been having issues for a couple days there...