Hi, thanks for reaching out. Error 0030 exception occurs in the case when it is not possible to download a file. This exception in Azure Machine Learning occurs when it is not possible to download a file. You will receive this exception when an attempted read from an HTTP source has failed after three (3) retry attempts. The resolution is to verify that the URI to the HTTP source is correct and that the site is currently accessible via the Internet.
Can you try a different url such as this example to verify: https://archive.ics.uci.edu/ml/machine-learning-databases/iris/iris.data?