I have a set of years of tick history data provided in CFS that I have access to. Most of the files successfully download to my local directory, including some of the larger gzip that need chunking. However, there are several gzip that refuse to download, and I often receive an error like the following when I am trying to download locally (I removed sensitive information about the file I am pulling):
ConnectionError: HTTPSConnectionPool(host='s3-us-east-1.amazonaws.com', port=443): Max retries exceeded with url: *PUT YOUR LINK HERE* (Caused by NewConnectionError('<urllib3.connection.HTTPSConnection object at 0x7f453118a680>: Failed to establish a new connection: [Errno -2] Name or service not known'))