R82 | Large File Downloads Fail with HTTPS Inspection

[B_P]

When downloading large files (~4.5GB), they fail after a few GB or so. This only happens on clients whose traffic is HTTP inspected. Not sure if sk150933 is applicable as fw ctl commands don't show indicators. Why would HTTPS inspection cause the download to fail midway through?

[the_rock]

How is blade settings configured? Fail open or close? Also, is it set to background or hold?

Andy

[PhoneBoy]

HTTPS Inspection alone shouldn't cause this.
Threat Prevention may, though large files should be bypassed for emulation.
What blades are enabled here and is there any relevant logs?

[B_P]

Mmmm yes, possibly (and likely) Threat Prevention. Seems like every once in a while I'll see a detect on the domain but nothing on why. It oddly just says "whatever.domain.com Detected".

[Wolfgang]

We had similar experience with R82, but not sure that HTTPS inspection is the problematic feature. The download stops after some time and after a long time 30-50s the download continues . The same behaviour is seen with streaming, after some minutes watching a stream it stops and continues after some seconds.

[the_rock]

Thats interesting...I may upgrade my cluster to R82 in the lab to test this theory, since I had never seen that problem in R81.20

Andy