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Telling if client is on N in 891W router

We have an 891W wireless router on which we have enabled 802.11n speeds. When we connect with a 802.11n laptop client, it seems to be connecting on non-N data rates. We're trying to figure out if we've missed something in configuring the router or something that needs to be done on the client to make it connect on N speed. Any assistance would be greatly appreciated. Thanks.

===

Here's our show int command which shows that N is enabled on the radio:

wap-temp-rtr#sho int dot11Radio 0
Dot11Radio0 is up, line protocol is up
  Hardware is 802.11N 2.4GHz Radio, address is 0027.0df0.a730 (bia 0027.0df0.a730)

===

Here's the output of the show dot11 command that seems to indicate that the client is connecting on B/G speeds:

wap-temp-rtr#sho dot11 asso 0022.fbca.3a70
Address           : 0022.fbca.3a70     Name             : wap-temp-rtr
IP Address        : 10.1.10.41         Interface        : Dot11Radio 0
Device            : ccx-client         Software Version : NONE
CCX Version       : 4                  Client MFP       : Off

State             : Assoc              Parent           : self
SSID              : temp
VLAN              : 1
Hops to Infra     : 1                  Association Id   : 2
Clients Associated: 0                  Repeaters associated: 0
Tunnel Address    : 0.0.0.0
Key Mgmt type     : WPA PSK            Encryption       : TKIP
Current Rate      : 54.0               Capability       : WMM ShortHdr ShortSlot
Supported Rates   : 1.0 2.0 5.5 11.0 6.0 9.0 12.0 18.0 24.0 36.0 48.0 54.0
Voice Rates       : disabled           Bandwidth        : 20 MHz
Signal Strength   : -62  dBm           Connected for    : 3689 seconds
Signal to Noise   : 34  dB            Activity Timeout : 20 seconds
Power-save        : Off                Last Activity    : 0 seconds ago
Apsd DE AC(s)     : NONE

Packets Input     : 22964              Packets Output   : 23222
Bytes Input       : 2455552            Bytes Output     : 22794389
Duplicates Rcvd   : 2                  Data Retries     : 6834
Decrypt Failed    : 0                  RTS Retries      : 0
MIC Failed        : 0                  MIC Missing      : 0
Packets Redirected: 0                  Redirect Filtered: 0
Session timeout   : 0 seconds
Reauthenticate in : never

===

Here's the relevant parts of our configuration:

interface Dot11Radio0
no ip address
no ip route-cache
!
encryption vlan 1 mode ciphers tkip
!
broadcast-key vlan 1 change 45
!
!
ssid temp
!
antenna gain 0
channel least-congested 2412 2437 2462
station-role root
end

!
dot11 ssid temp
   vlan 1
   authentication open
   authentication key-management wpa
   guest-mode
   infrastructure-ssid optional
   wpa-psk ascii 7 <removed>
!

interface Dot11Radio0.1
encapsulation dot1Q 1 native
no ip route-cache
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
!

1 REPLY
Hall of Fame Super Silver

Re: Telling if client is on N in 891W router

Well... that client will never connect via 802.11N.  The reason is that the 802.11N standard does not support tkip.  So if you change the encryption to WPA2/AES or leave it open and make sure you channel bond (40mhz) channel width, then you might be able to connect using 802.11N.  Hope this helps.

-Scott
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