Sounds like youre hitting this one:
CSCuj17283 <https://cdetsng.cisco.com/webui/#view=CSCuj17283> Macbook Air, Macbook with 802.11ac chipset, and Intel 6300 v15.9.2.1 chipets are reported to see dropped packets and odd ARP behaviors when using Cisco 3700 Series access point with WPA2 security and Centrally switched data (Local mode or Flex). Behavior varies, number of associated clients, device hosting the default gateway of the client access VLAN, and/or L3 path beyond L2 DS. Supposed to be fixed in version 7.6.100.4 and available if you kneel before the mighty TAC. There also rumors about a beta of 7.6MR1 https://supportforums.cisco.com/docs/DOC-40402 that have this fixed. This message will self-destruct in 10 seconds, good luck Lee . ;) Cheers Anders Från: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] För Lee H Badman Skickat: den 24 februari 2014 15:48 Till: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Ämne: [WIRELESS-LAN] 7.6.100 bugs- looking for input Turning to my Cisco WLAN colleagues on the list for their input. Were running 7.6.100, since the holiday break after doing fairly extensive testing and getting the input of other large environments that ran it in beta. Weve done well on this code to date, but are about to roll out 3700s in a new, very high profile building, and so Im looking closely at every bit of data I can get on potential problems looming. Please see https://supportforums.cisco.com/message/4173717 thread, and in particular the second half of the discussion. There are three potentially bad bugs described, and also the mention of a new engineering build available (seemingly by request) to address these bugs and a few more. Is anyone either hitting these bugs, or also doing the Im rolling out 3700s and scared of my code dance? Any other insight on the topic that maybe others would benefit from? Any other guidance coming from Cisco for your particular situations? Thanks very much, Lee Badman ********** 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/.
