With Sophos Home Ediition 9.2.2 under OS X Yosemite, I'm having some trouble downloading large files through the web browsers, which I think is caused by the SophosWebIntelligence component. Specifically, I was trying to download a TechNet trial ISO of Windows from care.dlservice.microsoft.com. In both Chrome and Safari, the download would simply stop half-way through. The browser would report the download completed (incorrectly, as the file was only around half the expected size), but the SophosWebIntelligence component continued receiving large amounts of data regardless; this also blocked any further browsing I tried to do. This occurred consistently over several attempts.
I turned off the Web Intelligence options in Sophos, and verified that the WebIntelligence component was inactive: the browser then downloaded the file at its correct size.
I hadn't noticed this problem with OS X Mavericks, which I had previously been using, but it's possible I just hadn't run into a situation where it occurred.
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