Are the AP's getting their IP addresses from a DHCP server, and if so, do IP renewals at all correlate to the AP dropping the CAPWAP session? Jeff
>>> On Tuesday, January 31, 2012 at 5:29 AM, in message >>> <4f27ecd5.6070...@uvm.edu>, Dan Brisson <dbris...@uvm.edu> wrote: I'm curious if any Cisco users out there are experiencing or have experienced what we're seeing on our campus. This past summer we installed 3502i's in all of our residence halls - approximately 500 total. Ever since the students have moved in, we will get messages from WCS stating that "AP XYZ" is down and disassociated from the controller. When I check out the AP, the uptime is fine, but the "CAPWAP join time" is for like 30 seconds, or however long it took me to check. We've tracked this and it is totally random as to what AP will drop, which makes troubleshooting this very tough. The log on the AP isn't helpful. I'm working with TAC who suggests that keepalives are getting missed. I'm not sure why that would be the case since we have another 500 or so APs on the admin side that very rarely drop. Adding to that, when the students left for break, the AP drops stopped. They came back, and sure enough, the drops start up again. I will say that the AP always joins back immediately, but for the time that it does drop A) I'm sure connectivity is affected in that area and B) we get an email. Anyone experiencing this? Thanks, -dan -- Dan Brisson Network Engineer University of Vermont (Ph) 802.656.8111 dbris...@uvm.edu ********** 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/.
