We have a TAC open on this issue that have made little progress on this mostly due to my part. I’ve put the pause button on troubleshooting to a certain degree with the semester startup. I’ve not been able to devote time to this issue. As a workaround TAC has suggested and I’ve found to be accurate that this appears to typically only be effecting intel chipsets. Make sure you are at the latest driver version and change the HT mode setting under the advanced tab of the driver. The default should be VHT mode. Change this from VHT to HT. This will disable AC but will improve client stability till a resolution is reach.
Thanks, Kelly Slone, B.S., MCP Telecom Specialist II Marshall University Information Technology Drinko Library DL 420 Office: 304-696-6109 Helpdesk: 304-696-3200 [email protected]<mailto:[email protected]> On Aug 25, 2016, at 4:45 PM, Legge, Jeffry <[email protected]<mailto:[email protected]>> wrote: From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:[email protected]] On Behalf Of Jeffrey D. Sessler Sent: Thursday, August 25, 2016 2:53 PM To: [email protected]<mailto:[email protected]> Subject: Re: [WIRELESS-LAN] Windows loosing gateway connection on 5520 with 3800's Do you have other WAPs to test against i.e. is it specific to the 3802’s or does it happen on older models too? Seems to be 3802’s on new 5520 only. Is this happening when the Win 10 machine roams to another WAP, or does it happen when stationary and anchored to one WAP?Not sure but I think it is both cases. Is this an open WLAN or is authentication involved? 802.1x AES WPA2 authentication Are the Win 10 clients all the same e.g. Dell with Intel card, or a random mix? I do not have enough cases to know. I have seen two that ar Lenevo with Windows 10. I sometimes get it with my Lenevo Yoga on Windows 8.1. Are all Win 10 clients seeing this? If not, Is MAC address randomization enabled on the ones that are? Are they running the new Win 10 anniversary edition? Don’t know how do I tell. Does it only happen only after Anyconnect is used i.e. if you don’t startup/connect, does the problem manifest itself? Are you using the latest Anyconnect 4.x client? I think it may only occur when anyconnect is connected. We are using version 4.2.04039. Getting debugs is probably the best. I’ll get next debugs next time I see and active problem or one that is repeatable. Jeff From: "[email protected]<mailto:[email protected]>" <[email protected]<mailto:[email protected]>> on behalf of "Legge, Jeffry" <[email protected]<mailto:[email protected]>> Reply-To: "[email protected]<mailto:[email protected]>" <[email protected]<mailto:[email protected]>> Date: Thursday, August 25, 2016 at 7:12 AM To: "[email protected]<mailto:[email protected]>" <[email protected]<mailto:[email protected]>> Subject: [WIRELESS-LAN] Windows loosing gateway connection on 5520 with 3800's I am seeing Windows 10 clients lose their connection to gateway. I have a new 5520 controller with 3802’s. The cisco Anyconnect gets error message saying it cannot reach policy manager. I ping the gateway and DNS server but do not get a response. Is anyone experiencing this problem? ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found athttp://www.educause.edu/groups/. ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found athttp://www.educause.edu/groups/. ********** 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/.
