After updating a few of our AP230's to HiveOS version 6.6r1a it seems some clients are no longer able to connect to out WPA2-Enterprise (AES) secured wifi network.
We figured out that specifically notebooks (running Windows 8.1 or Windows 10) with an Atheros chipset are affected (for example the Atheros AR5BMD222, using latest drivers). The wifi adapter status in Windows says "Attempting to authenticate" and after some time Windows says it is not able to connect to the network.
It should be noted these notebooks are still able connect to a WPA2-Personal secured network (guest network) on the same AP.
After downgrading the access points to HiveOS 6.4r1, the affected computers immediately connected to our WPA2-Enterprise network again.
My question is: Is this a known issue? And is there a way around the issue without downgrading?
Thanks in advance.