On the Mac OS side, is there any sort form of end-point security installed on them? We discovered a rather nasty bug with Avast where it's proxy extension that checks website for safe content (and proxy for mail) will go stupid from time to time when installed on 10.9. Seems to happen more if there are any delays in website response. Chased our tails on that for days as avast is very common to see on student-owned computers (it's free). Only solution we found was to remove it and find something else. It manifests itself by an escalating increase in website response time and even what looks like a complete failure of Internet. Also, if the device is using DNS resolution other than from your local DNS servers e.g. Google's public DNS, it can have adverse effect on where the device is sent for akamai (or other) CDN content. Meaning, instead a local akamai cache it could be looking elsewhere across congested links. Jeff
>>> On Friday, January 16, 2015 at 9:56 AM, in message <[email protected]>, Lee H Badman <[email protected]> wrote: Just throwing this out to the group. Over this week, where we’ve had almost 20K peak client devices on the WLAN, we’re getting a couple of complaints a day of (seemingly) Apple devices, primarily Macs, getting either slow page loads or hung pages even though DNS resolutions are fine on those machines. We haven’t done detailed analysis yet, buts starting to feel a bit like a trend. Seems to only happen on content-rich pages like CNN, ESPN, etc that are Akamaized (we have local servers). Again, very circumstantial, so far. For what it’s worth, we also recently put all of these of these users behind a NAT topology using A10 technology, but thus far there’s not much to point at in the NAT itself that gives away any sense of issue. Anyone else seeing what I describe here? Thanks- Lee Lee Badman Wireless/Network Architect ITS, Syracuse University 315.443.3003 (Blog: http://wirednot.wordpress.com) ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/. ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
