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Sophos and problems downloading large files

zbd

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.

:1019585


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    My internet service at home has a theoretical maximum of 16Mbps - practically I get up to about 700KB/sec for downloads.  I noticed the problem in my original post after about 1.5 hours:  by that time, the browser had finished, producing a roughly 2GB file from what should have been a >4GB download.

    I tried again at home again tonight.  The browser apparently stopped receiving any data after about 200MB of a 4.2GB download.  SophosWebIntelligence continued to download data at roughly the capacity of my broadband.  However, while it received data, it stopped sending any (i believe it's meant to send on the data it receives "internally" to whatever application is really the consumer of the data).

    After telling the browser to cancel the download, the above behaviour continued for some minutes (over 4), during which time I had could hardly access the web.  Things did recover after some time, and web browsing started working.

    I did not let the download run for as long as my original attempt.  I wonder if the download would eventually have terminated, as it did the first time.

    :1019769
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    My internet service at home has a theoretical maximum of 16Mbps - practically I get up to about 700KB/sec for downloads.  I noticed the problem in my original post after about 1.5 hours:  by that time, the browser had finished, producing a roughly 2GB file from what should have been a >4GB download.

    I tried again at home again tonight.  The browser apparently stopped receiving any data after about 200MB of a 4.2GB download.  SophosWebIntelligence continued to download data at roughly the capacity of my broadband.  However, while it received data, it stopped sending any (i believe it's meant to send on the data it receives "internally" to whatever application is really the consumer of the data).

    After telling the browser to cancel the download, the above behaviour continued for some minutes (over 4), during which time I had could hardly access the web.  Things did recover after some time, and web browsing started working.

    I did not let the download run for as long as my original attempt.  I wonder if the download would eventually have terminated, as it did the first time.

    :1019769
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