Shipping Integrated Providers not working

I’m having troubles in manage to integrate shipping providers. My customer have the information required to fill in FedEx Integration Provider. I have account number, meter number production password and authentication key from FedEX. But when try the checkout i have 401 error (unauthorized). I cannot have any more information about the error, FedEX just confirmed the information is valid. The same issue about UPS, since UPS changed Oauth in June and they no longer user license number UPS integration is not working. I really need to have a shipping provider working, anyone can help me? Cheers