iOS 13 appeared on my production iPhone tonight. Finally I figured I'll investigate and sort out how to place bandwidth limits on the iOS updates so they won't kill our client networks on Monday. I've tried unsuccessfully in the past with this and failed. Tonight I've succeeded but also found a problem at the same time. Hoping for help to resolve the problem.
I've done the following
1. Configure an Application Traffic Shaping rule to limit speed to 4Mbps and set it's priority to 7
2. I've applied that Application Traffic Shaping definition to the Apple OTA Updates as the Traffic Shaping Default
3. I've configured my default rule (last rule in the set) to have Application Control set to All and "Apply application based traffic shaping policy" to enabled. I also have Scan HTTP enabled.
What I found was that unless I had the AV Engine set to Avira, it failed to download the iOS update. That is to say, if I had it set to Sophos, it failed. If I disabled "Scan HTTP" it worked... I'm not sure why the Sophos AV engine has a problem with this - but it appears to be causing a problem.
Keen for any thoughts on this please.
Wayne
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