I've done everything in Android Studio and it does not update and the SDK update sites can not download the Android Repository, I have already seen that the error is the 407, need proxy authentication. I have configured the proxy manually in the HTTP tab, as the company's computer asks for credentials, I already configured with the credential, and in the test it works, but when it comes to updating or downloading something, it's not going to work because it does not have authentication, This?