CIsco 1131: VLans + MultiSSID

For a subject support you need to add to config next lines:

dot11 ssid guests
   vlan 254
   authentication open
   authentication key-management wpa version 2
   mbssid guests-mode dtim-period 75
   wpa-psk ascii *************

interface Dot11Radio0
   encryption vlan 254 mode ciphers aes-ccm
   ssid guests
   mbssid
interface Dot11Radio0.254
   encapsulation dot1Q 254
   bridge-group 254
interface FastEthernet0.254
  encapsulation dot1Q 254
  no ip route-cache
  bridge-group 254
  no bridge-group 254 source-learning
  bridge-group 1 spanning-disabled

P.S.: If you're getting errors like "Sending station has left the BSS" try to use only wpa2 + aes or wpa + tkip.