Macbooks using vscode weren't working properly because it seems Visual Studio Code (VSCODE) or vscode on MAC doesn't automatically retrieve the proxy settings we set on PAC, it works on the browser but not on Visual Studio Code (VSCODE)
The conclusion was that vscode couldn't connect to the GEMINI extension because it wasn't getting the proxy settings.
The solution is to force the proxy in the settings.json file
{ "http.proxy": "http://my.proxy.address:8080", "http.proxyStrictSSL": false, "http.proxySupport": "on",}