The Test "FileDownloadTest.TestDownload_InternetExplorer_HandleZipFileDownload" (to be renamed to "FileDownloadTest.TestDownload_HandleZipFileDownload") failed once on our Build Server with following Stacktrace
This looks like a flaky test. Screenshot showed that Chrome has downloaded the file, but our test could not find any new file in the download directory. So either our Testcode has a race condition for a specific scenario or Chrome.
Just because of gut feeling, i think that Chrome has not completed the Download. This is highly speculative and unproven. Maybe their virus scanner crashed because of the multiple of tests? (https://superuser.com/questions/678601/disable-chromes-built-in-automatic-virus-scanning-of-downloaded-files) Try to reproduce the error consistently before trying to fix something.