Errormessage when trying to install MT Enhanced Plugin Google V3 for Trados Studio

When we try to install the plugin we get an errorcode Status(StatusCode=Unavailible, Detail=Failed to connect to all addresses We are on the current Trados Studio 2021 Version SR2_16.2.10.9305

The Workaround described here is not suitable to us because we use custom trained machines

Thank you in advance for your help

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