How are your data rates configured? I seem to recall something about Apple devices that used to be picky about it. We don't have Cisco, but we have 12 as Mandatory and everything lower disabled for NG.
Thomas Carter Network & Operations Manager / IT Austin College 900 North Grand Avenue Sherman, TX 75090 Phone: 903-813-2564 www.austincollege.edu -----Original Message----- From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:[email protected]] On Behalf Of Dustin Howard Sent: Monday, July 17, 2017 3:28 PM To: [email protected] Subject: [WIRELESS-LAN] Older Apple devices and issues with 802.11N(2.4Ghz) I'm having an issue with some Apple devices and was wondering if anybody has experienced similar or if you have a similar environment and all is working well... My environment is 5508 controllers (8.0.140.17) with 1600 series and 1702i APs. We have 1242 AP so cannot upgrade past 8.0.. I am having an issue with what seems to be only older Apple devices on N(2.4Ghz). The devices authenticate/DHCP just fine but are very slow and only seem to work for a few minutes until you have to restart the wireless card. Loading a video is impossible...pings timeout and have very high latency. Most the time the client cannot even ping the gateway. I have been able to recreate this with iPad, 3rd and 4th Generations, an older Macbook Pro and an iPhone 5c while using 1602i, 1602e, and 1702i APs. I haven't confirmed any other brands having this problem. The devices mentioned above work great if I disable the N data rates on the AP radio. I had two users that were crippled with this issue, so I disabled the N data rates for one building over the weekend. The users said their devices worked great over the weekend. They also work well on the 5Ghz band but we have areas that rely on the 2.4Ghz coverage. If this issue is not resolved before school starts, then I'm afraid will have to disable N data rates globally for the 2.4Ghz band. Appreciate any feedback! -- Thanks, Dustin Howard Network Support Specialist Information Technology Services Truman State University 100 E. Normal Ave. Kirksville, MO 63501 Office - (660) 785-4165 Cell - (660) 341-7869 ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/discuss. ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/discuss.
