Hello @a87645507,
From my understanding, the ETIMEDOUT error is often related to firewall settings. Please check to make sure that the required domain names are accessible with your firewall, and that your proxy server environment variables are set correctly, if relevant. See this Unity forum thread for more information and a list of required domain names - https://forum.unity.com/threads/network-configuration.590470/
Let me know if you are still experiencing issues after trying these steps!
-Alex