What is the issue?
If you are experiencing issues with downloading reports in Analytics (e.g. In Chrome browser the error "download.htm Failed - Need authorization"), please follow the steps mentioned below in this article.
Check this:
This issue is reproducible in the following browsers: Chrome, Edge, and Opera.
Resolution:
Currently, there are 2 workarounds for this issue:
Additional Information:
Please be informed that this issue was already reported as a bug and our responsible team is investigating it.