The symptom is:
When I download a file, e.g. the file size should be 472MB, and at the first few seconds, the progress shows 46.8/472MB and changes with size. Then suddenly the file size because 169/169MB and then finished download without error.

Meet this issue in IE/Chrome/Firefox. Clear the load download history could resolve it for a while but may have the same issue other other download in other jobs(We have several jobs with the same artifact name)

Run jenkins with
<executable>C:\Program Files\Java\jre7\bin\java.exe</executable>
<arguments>-d64 -Xrs -XX:MaxPermSize=2g -Xmx16g -Dhudson.lifecycle=hudson.lifecycle.WindowsServiceLifecycle -jar "%BASE%\jenkins.war" --httpPort=8080</arguments>