Hello, I have a 1130 ag attached is the config. I have added the lines to it but my chromecast still will not work. It works fine on my 1220 ag 
version 12.4
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
service password-encryption
!
hostname ap
!
logging rate-limit console 9
enable secret 5 $1$o2d7$6r3jZxnOElqERIRaI5vdt.
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no aaa new-model
!
!
no ip igmp snooping
no dot11 igmp snooping-helper
dot11 syslog
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dot11 ssid SUN KING
   authentication open 
   authentication key-management wpa
   guest-mode
   wpa-psk ascii 7 15010403082F327C7B
   no ids mfp client
!
!
!
username Cisco password 7 13261E010803
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!
bridge irb
!
!
interface Dot11Radio0
 no ip address
 no ip route-cache
 !
 encryption mode ciphers tkip 
 !
 ssid SUN KING
 !
 antenna gain 128
 speed  basic-1.0 2.0 5.5 11.0 6.0 9.0 12.0 18.0 24.0 36.0 48.0 54.0
 station-role root
 bridge-group 1
 bridge-group 1 subscriber-loop-control
 bridge-group 1 block-unknown-source
 no bridge-group 1 source-learning
 no bridge-group 1 unicast-flooding
 bridge-group 1 spanning-disabled
!
interface Dot11Radio1
 no ip address
 no ip route-cache
 !
 encryption mode ciphers tkip 
 !
 ssid SUN KING
 !
 antenna gain 128
 no dfs band block
 speed  basic-6.0 9.0 12.0 18.0 24.0 36.0 48.0 54.0
 channel dfs
 station-role root
 bridge-group 1
 bridge-group 1 subscriber-loop-control
 bridge-group 1 block-unknown-source
 no bridge-group 1 source-learning
 no bridge-group 1 unicast-flooding
 bridge-group 1 spanning-disabled
!
interface FastEthernet0
 no ip address
 no ip route-cache
 duplex auto
 speed auto
 bridge-group 1
 no bridge-group 1 source-learning
 bridge-group 1 spanning-disabled
!
interface BVI1
 ip address 192.168.1.2 255.255.255.0
 no ip route-cache
!
ip default-gateway 192.168.1.1
ip http server
no ip http secure-server
ip http help-path 
http://www.cisco.com/warp/public/779/smbiz/prodconfig/help/eag
bridge 1 route ip
!
!
!
line con 0
line vty 0 4
 login local
!
end