So strange,
On our MERU corporate WIFI solution I'm unable to connect to the WIFI network and SSID for the Guest WIFI network on the 5GHz band using a iPhone 6 Plus phone after the iOS 9 upgrade.
Have tried to reset the phone network settings and other but it won't connect... no VPN or hidden SSID in use!
Guest WIFI is open and should bring you to the login portal, but I can't even connect to the WIFI AP's for unknown reason.
We just did try an iPhone 5 that was upgraded to iOS 9 and it works!
So now I'm wondering is it only the iPhone 6 + (Plus) that have this problem after the iOS 9 upgrade?
At home I had some issus connecting to the 5GHz band but it seems to work after like 3 connection attempts, however there it's a Cisco AP in use.
Any idea if there is an known bug / change of how the Phone connects/authenticate when connecting to WIFI access points?
(Have on tried to do a full factory reset of the iPhone yet...)
Anyone using the iPhone 6 + that have issues connecting to WIFI AP's using only 5GHz band (Not Mixed ones or 2,4GHz.)
/J