We are about to install Cisco 1250 N APs on campus. I have noticed the problem that you are talking about in my test lab with the 1250 N.
We currently only have Cisco 1230 b/g APs install on campus using 2.4ghz. The Macs only have the problem that you describe when connected to the Cisco 1250 N. It doesn't seem to matter what radio they connect to on the N AP. If have tried disabling the 5ghz on the 1250 N and I get the same problem. This problem has held up the process of us installing the 1250 N APs. What type of APs are you using? From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:[email protected]] On Behalf Of Lee H Badman Sent: Thursday, January 22, 2009 8:58 AM To: [email protected] Subject: [WIRELESS-LAN] Macintosh- Ongoing Connectivity Issues We saw this in earlier versions of OS X, then things got better with some of the earlier 10.5.x code, but now seems to be getting worse again. Wondering if anyone else is seeing Mac behavior along these lines on the latest Apple code versions including 10.5.6: * Clients will associate to lesser-quality 11a cells even though better 11g signal is present (FREQUENT) * Clients will stick to the 11a AP they associate with even when they have the opportunity to move to better (stronger, less users, good SNR) 11a signal (FREQUENT) * Clients appear to be fine in every way- good association, good SNR and signal strength, pass 802.1x authentication, all indications are fine. Yet they have difficulty getting IP address or doing anything else despite their nearby peers having no issues at all, in cells that are not overtaxed. (LESS FREQUENT) We have about 35% Macintosh penetration among our 5-6 thousand user per day client count. But of late, every wireless client issue not easily resolved seems to be with Mac hardware doing the above described. Is any one else feeling these symptoms? -Lee Lee H. Badman Wireless/Network Engineer Information Technology and Services Syracuse University 315 443-3003 ********** 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/.
