sgtblikey joined the community
I have observed this issue frequently and began to notice that it coincides with large downloads. Within web access protection, I changed the maximum size and scan time limits for the threatsense engine so that would not scan large objects. I randomly chose 50MB and 120 seconds for object scan limits and 10 levels and 50MB for archive scan limits, both of which seemed reasonable. Thus far I haven't seen the problem return.