Proxy from MT Enhanced and GoogleCloudTranslationProvider

Hello All, 

i have a problem when i will connect to my Google API to use the AutoML. 

So we check this with our Proxy-Colleague and there is no connection but when i close my VPN then it works.

That means we need to change the Proxyadress to the correct one then we can use MT Enhanced with VPN. Did somebody know where can i change this? 

I also do this with GoogleCloudTranslationProvider and same problem and also it was not possible to chooes my Models in AutoML

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