This will split the archive into 200Mb blocks that you can download without a problem (if there is still a problem reduce the size by changing 200m to a lower value)
Then when you have downloaded all the split files reunite them on your system using the following command line (in a linux environment, or use cmder if you are on Windows):
cat allfiles.tar.gz.part.* > allfiles.tar.gz
PS: This is in fact valid in any Jupyter-notebook hub