Is there a bug ID for Cisco on this issue?
On Wed, Jan 22, 2014 at 11:04 AM, Tim Cappalli <cappa...@brandeis.edu>wrote: > This is a known issue with OS X and is happening across multiple wireless > vendors. > > > > > > *Tim Cappalli* | ACCP / ACMP / CCNA > Network Engineer | Brandeis University > cappa...@brandeis.edu | (617) 701-7149 > > > > *From:* The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto: > WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] *On Behalf Of *Lee H Badman > *Sent:* Tuesday, January 21, 2014 4:14 PM > > *To:* WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU > *Subject:* Re: [WIRELESS-LAN] dropped connections on Macbooks with Cisco > WLC 7.6.100.0 > > > > I guess I’d also ask if failure machines are staying awake the whole time? > > > > *From:* The EDUCAUSE Wireless Issues Constituent Group Listserv [ > mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU<WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>] > *On Behalf Of *Mike Albano > *Sent:* Tuesday, January 21, 2014 3:56 PM > *To:* WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU > *Subject:* Re: [WIRELESS-LAN] dropped connections on Macbooks with Cisco > WLC 7.6.100.0 > > > > Can you perform a packet capture and identify exactly when the failure is > occurring? Sniffer AP/Omnipeek/AirPCap etc (or more easily a 3SS macbook > via airport utilities...see here: > http://rfsperra.tumblr.com/post/68654132591/capturing-802-11-traffic-with-os-x > ). > > > > Taking a closer look at the packets, while time consuming, should help you > get closer to the root cause. TAC will likely want this as well. > > -----The EDUCAUSE Wireless Issues Constituent Group Listserv < > WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU> wrote: ----- > > To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU > From: "Spurgeon, Charles E" > Sent by: The EDUCAUSE Wireless Issues Constituent Group Listserv > Date: 01/21/2014 12:13PM > Subject: Re: [WIRELESS-LAN] dropped connections on Macbooks with Cisco WLC > 7.6.100.0 > > After getting complaints about connectivity drops on both Mabook Pro and > Macbook Air laptops, I was able to replicate the issue on the 5 GHz radio, > in either a model 3700 AP or a model 3600 with ac module. No issues are > seen (connection stays up for 30 minutes of testing) on 5 GHz in a model > 3500 or on a model 3600 with no ac module. > > > > To make a stable testbed I created an SSID that was identical to our > production SSID with the exception of a radio policy of 5GHz only. Next, I > created an AP group for testing with that SSID, and put the 3600 or 3700 AP > into that group. So the test AP only has one SSID and only on the 5GHz > radio. > > > > Once associated with this SSID, the laptop is able to ping its own IP > addr, but not the gw addr. The laptop will be able to ping an addr on the > campus or Internet until it stops working, which will happen anywhere from > 10 to 20 minutes into the test. > > > > This result also occurs on an MBA with IPv6 disabled. > > > > So far the test connection eventually fails on a mid-2013 MBA running > 10.9.1 and a mid-2010 MBPro, running either 10.9 or 10.8.5. > > > > -Charles > > > > *From:* The EDUCAUSE Wireless Issues Constituent Group Listserv [ > mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU<WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>] > *On Behalf Of *Tristan Gulyas > *Sent:* Sunday, January 19, 2014 6:13 PM > *To:* WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU > *Subject:* Re: [WIRELESS-LAN] dropped connections on Macbooks with Cisco > WLC 7.6.100.0 > > > > Hi guys, > > > > We’re about to start piloting 7.6.100.0 with a variety of clients - > what’s the best way to test/reproduce this issue? > > > > Cheers, > > Tristan > > > > > > > > On 17 Jan 2014, at 9:51 am, Luke Jenkins < ljenk...@weber.edu> wrote: > > > > We provide native dual stack access for our wireless clients, so that > could be why we aren't seeing the issue. > > > > -Luke > > > > On Thu, Jan 16, 2014 at 2:33 PM, Lee H Badman < lhbad...@syr.edu> wrote: > > We have found that disabling client-side IPv6 (we also are not set up for > it) puts an end to most OS X issues. Sometimes is the fix for random Win > problems, but very prevalent in OS X space. > > > -----Original Message----- > From: The EDUCAUSE Wireless Issues Constituent Group Listserv > [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] > On Behalf Of Scott Allen > Sent: Thursday, January 16, 2014 4:30 PM > To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU > Subject: Re: [WIRELESS-LAN] dropped connections on Macbooks with Cisco WLC > 7.6.100.0 > > Good point. I had a couple of problem tickets (7.4.100.0) that on > further investigation Prime showed the clients were connected only > IPv6 and getting nowhere because we don't have IPv6 enabled. > -Scott > > > On Thu, Jan 16, 2014 at 4:22 PM, Lee H Badman < lhbad...@syr.edu> wrote: > > We're doing fine with WPA-2, PEAP, MS-CHAP v2. I hate to say it- but try > > disabling IPv6 on the problem machine, and make sure no OS X updates > > waiting. > > > > > > > > From: The EDUCAUSE Wireless Issues Constituent Group Listserv > > [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU ] On Behalf Of Luke Jenkins > > Sent: Thursday, January 16, 2014 3:06 PM > > To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU > > Subject: Re: [WIRELESS-LAN] dropped connections on Macbooks with Cisco > WLC > > 7.6.100.0 > > > > > > > > We're running 7.6 with a mix of APs including 3602s, no reports of this > > issue here and I've not noticed it on my Macbook Pro. Though it could > always > > be some setting we don't have in common such as different encryption > types, > > QoS, or HA that are causing the issue. > > > > > > > > Happy to drill down into the nitty gritty off list if you want to check > > configs, drop me a line. > > > > > > > > -Luke > > > > > > > > > > > > On Thu, Jan 16, 2014 at 12:40 PM, Spurgeon, Charles E > > <c.spurg...@austin.utexas.edu > wrote: > > > > Has anyone else seen a dropped connection issue with Macbooks and Cisco > WLC > > v 7.6.100.0 code? > > > > > > > > We are pilot testing 7.6.100.0 code on a WiSM2 card supporting staff APs > and > > have noticed a dropped connection issue with Macbooks when associated > with > > the 5GHz radio on model 3602i or 3702i APs. > > > > > > > > The connection typically fails after approx. 15 minutes, usually leaving > the > > client with an IP addr which it can ping, but the client cannot ping the > gw > > addr or anything beyond the gw. The client WiFi interface reports that > it is > > still associated, which is confirmed on the controller side of the > > connection. > > > > > > > > For one Macbook the test AP is directly above the laptop, with a > > 5GHz-specific and AP-specific SSID to help isolate the issue. > > > > > > > > IOS and Windows7 platforms do not appear to have the issue when > associated > > to the same SSID on the same AP. > > > > > > > > But so far three Macbooks (two Macbook Air with dot11ac, one Macbook Pro > > with dot11n) have demonstrated the dropped connection issue. They are all > > running Mac OS X 10.9.x (Mavericks). > > > > > > > > The issue does not occur when the test 3602i AP is moved back to 7.4 > code. > > > > > > > > Thanks, > > > > > > > > -Charles > > > > > > > > Charles E. Spurgeon > > > > University of Texas at Austin / ITS Networking > > > > c.spurg...@its.utexas.edu / 512.475.9265 > > > > ********** Participation and subscription information for this EDUCAUSE > > Constituent Group discussion list can be found at > > http://www.educause.edu/groups/. > > > > > > > > > > > > -- > > > > =-=-=-=-=-=-=-=-=-=-=-= > > > > Luke Jenkins > > Network Engineer > > Weber State University > > > > ********** 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/. > > > > -- > > Scott Allen > Director, Network Services > Georgetown University > sc...@georgetown.edu > mobile - 202-309-5739 > > ********** > 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/. > > > > > > -- > > =-=-=-=-=-=-=-=-=-=-=-= > > Luke Jenkins > Network Engineer > Weber State University > > ********** 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/. > > **********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/. > > ********** 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/. > > -- Alan Nord, CCNA Infrastructure Manager Information Technology Services Macalester College 1600 Grand Avenue St. Paul, MN 55105 ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
