I just tried to download the latest SoapUI Open Source version (5.4.0) for windows with download option "Windows Zip (64-bit Java not included) and failed in the beginning. See also attached screenshot WindowsZipVersion_ToBeDownloaded.jpg
Unfortuntely, the download never started automatically. As a result of that, I clicked on the "Click here" link on the page that was pointing to a different location though, see also attached screenshot LinkReferingToDifferentFile.jpg
I adjusted the location to: https://s3.amazonaws.com/downloads.eviware/soapuios/5.4.0/SoapUI-5.4.0-windows-bin.zip in a new browser tab and finally I was able to download what I was looking for
In case you are running into the same issue, I hope I was able to help until the links on the HTML page are adjusted correspondingly.