IronPort Proxy S370 large HTTPS downloads failing

Chris Gillham — Fri, 08 Mar 2013 17:48:30 GMT

We are having problems with HTTPS file downloads failing when going through our IronPort S370 Proxy. Files will partially download in a resulting corrupt file, but the application will not perceive there to be a failure.

This happens at various points in the file downloads. For example, trying to download a 92.9MB PowerPoint file from dropbox.com results in having to retry the download several times in order to get the full file. How can I tell if this is a setting issue or a load issue? This is a big issue with our users.

The first attempt failed at 63.4MB.

The second attempt failed at 36.5MB.

The third attempt failed at 85.1MB.

The fourth attempt worked at 92.9MB.

Model: S370

AsyncOS Version: 7.5.0-833 for Web

Is anyone else experiencing or experienced this issue? If so, how was it resolved?

Thanks,

Chris

IronPort Proxy S370 large HTTPS downloads failing

Erik Kaiser — Mon, 25 Mar 2013 23:33:22 GMT

Hi Chris,

Please open a support case with WSA TAC.

Sincerely,

Erik Kaiser
WSA CSE
WSA Cisco Forums Moderator

topic IronPort Proxy S370 large HTTPS downloads failing in Web Security

IronPort Proxy S370 large HTTPS downloads failing

IronPort Proxy S370 large HTTPS downloads failing