I updated my 3400 controllers on saturday to ver 6.4.2.4
Now, in one site (Netherlands) that has 6 AP 105's, users now cannot connect to wireless using the main ssid. They can connect using the guest ssid.
24 other sities also using the same controller can connect fine using either ssid.
TAC support call could not come up with a reason for this.
In the logs on the controller... when a test laptop tries to connect i see this error...
MIC failed in WPA2 Key Message 2 from Station e8:b1:fc:a2:72:31 d8:c7:c8:1e:eb:b8 nlhoo1wlsap03
nlhoo1wlsap03=AP
e8:b1:fc:a2:72:31=MAC of test laptop in the affected office.
Any ideas?