We had this same issue. Although I think it was affecting Macbooks originally and then migrated to Windows a few months later. But yes, it seems to have to do with the Creators update but TAC said the new default will be 1250 anyway.
Thanks, -- Curtis K. Larsen Senior Network Engineer University of Utah IT/CIS Office 801-587-1313 ________________________________________ From: The EDUCAUSE Wireless Issues Constituent Group Listserv <[email protected]> on behalf of Gavin Pyle <[email protected]> Sent: Thursday, July 6, 2017 9:08 AM To: [email protected] Subject: Re: [WIRELESS-LAN] Cisco 3800 Series APs We recently replaced the APs in one of our buildings with 2802’s and experienced slow throughput on Windows 10 devices. We had one older 3602 AP in the building that we didn’t replace and found that when the same clients connected to it, they didn’t experience any issues. This post on Cisco’s support forums<https://supportforums.cisco.com/discussion/13089001/packet-loss-2800-ap> suggested that modifying the “Global TCP Adjust MSS” setting on the controller to 1250 may resolve the issue, so we adjusted the MTU on a couple of Windows 10 laptops first to test and it did resolve the issue, so we modified the setting on the controller. We’re on WLC 5520, software version 8.3.102.0. We didn’t test with a full range of devices, however it seemed to only affect Windows 10 devices with the Creator update. Other devices we tested were iPhones, Android phones, and Mac Laptops, and they didn’t seem to have any issues. Gavin Pyle Network Engineer Information Technology Green River College From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:[email protected]] On Behalf Of Jason Watts Sent: Thursday, July 6, 2017 5:34 AM To: [email protected] Subject: Re: [WIRELESS-LAN] Cisco 3800 Series APs Well that is troubling. We are about to deploy around 200 of them. Is anyone else experiencing similar issues to this on 2802's? -- Jason Watts Pratt Institute, Academic Computing Senior Network Administrator Sent from my iPhone On Jul 6, 2017, at 7:23 AM, Scharloo, Gertjan <[email protected]<mailto:[email protected]>> wrote: Hi Bryan, The University of Amsterdam and Amsterdam University of Applied Sciences are currently using 2802i Access Points since December 1, 2016 to gain experience with this new type of Access Point. (Only on the 9th and 10th floors) The access points have been problematic from the start, and still there are complaints from end users that we can’t solve or identify properly. The same users can work without problems on other floors where we have 2702i Access Points stationed in this property. We are currently dealing with client disconnections on the floors/buildings with AP2802i. This disconnection occurs 2-3 hours, sometimes more frequently. Many of our clients are effected. Another issue which is subpart of this issue is: the clients are connected but there is no traffic flow. These clients have laptop from different vendors for example Dell, Apple with different (updated) drivers. -The users stay connected but cannot transmit any data. Two months ago, we have started a new software release 8.2.154.17 and we were hoping to fix our client disconnect issue only with the 2802i AP, but the problem became worse. We have started a Tac CASE (severity 2) Regards Gertjan Scharloo ICT Consultant _____ Universiteit van Amsterdam | Hogeschool van Amsterdam ICT Services Leeuwenburg | kamer A9.44 Weesperzijde 190 | 1097 DZ Amsterdam +31 (0)20 525 4885 Mobiel : +31(0) 61013-5880 www.uva.nl<http://www.uva.nl/> uva.nl/profile/g.scharloo<http://uva.nl/profile/g.scharloo> Beschikbaar : Ma | - | Wo | Do | Vr | From: wireless-lan <[email protected]<mailto:[email protected]>> on behalf of Bryan Ward <[email protected]<mailto:[email protected]>> Reply-To: wireless-lan <[email protected]<mailto:[email protected]>> Date: Wednesday, 5 July 2017 at 18:07 To: wireless-lan <[email protected]<mailto:[email protected]>> Subject: [WIRELESS-LAN] Cisco 3800 Series APs Couldn’t find a recent discussion on the list archives, so I’ll ask my question. For those of you that have Cisco 3800 series APs in production, how have they been working for you recently? We currently purchase 3700 series APs as our standard for new installs and replacement of our 3500 series APs, but are now considering switching to the 3800 series. I heard there were a lot of issues with them at first, but was wondering if they’re still troublesome now that they’ve been out in the wild for some time. Also, does anyone currently have issues using Prime to manage them? Thanks all, -- Bryan Ward Network Engineer Dartmouth College Network Services 603-646-2245 [email protected]<mailto:[email protected]> ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/discuss. ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/discuss. ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/discuss. ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/discuss. ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/discuss.
