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loryan.strant
Beginner

Very slow wireless on 877w

Hi, I have a 877w running IOS C870-ADVSECURITYK9-M, Version 12.4(24)T2. For some reason I cannot get my wireless speed to go above 1.1MB/s.

Both NICs on my notebook and media centre are set for 802.11g. I also brought a 3rd computer into the mix and tried doing throughput tests between my own two computers to find I was getting the same speeds which indicates to me that the router is at fault.

Here is the wireless component of my config, can anyone see where I might improve it to get some decent throughput?

interface Dot11Radio0
no ip address
no ip route-cache
ip tcp adjust-mss 1400
no dot11 extension aironet
!
encryption mode ciphers aes-ccm
!
ssid LOZZAIR
!
speed basic-54.0
station-role root
world-mode dot11d country AU indoor
no cdp enable
bridge-group 1
bridge-group 1 subscriber-loop-control
bridge-group 1 spanning-disabled
bridge-group 1 block-unknown-source
no bridge-group 1 source-learning
no bridge-group 1 unicast-flooding

1 REPLY 1
Giuseppe Larosa
Hall of Fame Master

Hello Loryan,

see the config guide:

http://www.cisco.com/en/US/docs/routers/access/800/850/software/configuration/guide/wireless.html#wp999698

you can consider to increase the power level but one aspect that influences throughtput is the encryption complexity

>>  encryption mode ciphers aes-ccm

I would check if there are changes with a less demanding algorithm.

Hope to help

Giuseppe