We have about 195 AP5010's (10.6.4.0) deployed through 4 buildings. We have a mixture of older Macbook Air 2013's 2015's and 2020 models. We use 802.1x authentication for one SSID and WPA2 for another -- SSIDs are broadcasting 2.4,5,6GHz. We use a Windows DHCP server and Cisco switches. We have been noticing that our 2013 & 2015 Macbook Airs seem to have trouble connecting/staying connected. It always seems like it's failing at DHCP, per IQPilots dashboard. It does seem like if an older Mac is hits a DFS channel, it seems to always fail, but it's not consistent enough that I'm convinced that DFS is the problem. We have had this environment for about 5 months now - nothing really has changed and the issue is sort of just rearing it's head as of the last week or so.
