Cisco Aironet 1200 wireless network very slow

Question

I have a simple wireless network set up, 2 - Cisco Aironet 1200 AIR-AP1220B-A-K9 wireless access points with 2 dBi Diversity Omni directional Ceiling Mount Antennas. They are the only devices connected to a Multitech Routfinder router, the WAN side the router is connected to a dedicated DSL connection. They are powered by AIR-PWRINJ3 power injectors. The WAP get the IP address from the DHCP in the router.
When connecting to the wireless network it runs very very slow, the signal strength is excellent and the connection speed is 54 mbps. But when opening a web browser it takes for ever to load a simple page like msn.com. If I connect the notebook directly to the router it runs very fast. We have tested with several notebooks and have the same problem. When I view the available wireless networks in range the only two that show up are the two Cisco 1200 WAP.
I have done the following with no improvement:
Change the channels from auto to 6 on one and 11 on the other.
Reset to factory defaults.
Update the firmware to c1200-k9w7-tar.123-7.JA2.tar
Replace the 802.11b radios with 802.11g radios AIR-MP21G-A-K9.
Disable the Aironet extensions.
Following is the configuration from one of the access points (before the firmware update):
version 12.2
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
service password-encryption
hostname MMA1
aaa new-model
aaa group server radius rad_eap
aaa group server radius rad_mac
aaa group server radius rad_acct
aaa group server radius rad_admin
aaa group server tacacs+ tac_admin
aaa group server radius rad_pmip
aaa group server radius dummy
aaa authentication login default local
aaa authentication login eap_methods group rad_eap
aaa authentication login mac_methods local
aaa authorization exec default local
aaa authorization ipmobile default group rad_pmip
aaa accounting network acct_methods start-stop group rad_acct
aaa session-id common
username xxxx privilege 15 password xxxx
username xxx privilege 15 password xxxx
ip subnet-zero
bridge irb
interface Dot11Radio0
no ip address
no ip route-cache
ssid MMA1
authentication open
guest-mode
speed basic-1.0 basic-2.0 basic-5.5 basic-11.0
rts threshold 2312
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 192.168.10.100 255.255.255.0
no ip route-cache
ip default-gateway 192.168.10.1
ip http server
ip http help-path http://www.cisco.com/warp/public/779/smbiz/prodconfig/help/eag/ivory/1100
ip http authentication aaa
bridge 1 route ip
line con 0
line vty 5 15
End
Any suggestions would be greatly appreciated.
Best regards,
Randy

Answer 1

Thanks for the info.
The documentation say not to switch from auto to full duplex or half duplex when using inline power, well I think it says the AP may reboot. I may have tried half duplex before I upgraded the firmware.
While upgrading I disconnected the AP, used a patch cord to connect it to the router and pluged the power directly into it to make sure the wiring to the AP was not the problem and it did the same thing.
However, when trying to upgrade the firmware it took ~ 45 minuets to upload the image and filed a couple of times retrying. I connected the AP to the notebook directly with a crossover cable and it uploaded in about 45 seconds.
That got me to thinking that there may be a problem with the router so I have replaced it with a Linksys.
In the mean time the DSL went down yesterday so I have not been able to test the new setup.
The cables are T568B
W/O
O/W
W/G
B/W
W/B
G/W
W/B
B/W
Best regards,
Randy