%DOT11-4-MAXRETRIES: Packet to client xxx reached max retries, removing the client AND iPhone

[cisco]

Hi All,

I use Cisco AIR-AP1231G-E-K9 succesfully but the same config with the AIR-AP1280B-E-K9 is not possible

Could you please help me?

I need to deploy the AP 1280B Monday or tuesday ...

Config used :

conf t

dot11 ssid WiFi_Stef

authentication open

authentication key-management wpa

guest-mode

wpa-psk ascii WiFiPassword

int dot11Radio0

encryption mode ciphers tkip

ssid WiFi_Stef

speed range

channel least-congested

sho run :

dot11 activity-timeout unknown default 100000

dot11 activity-timeout client default 100000

dot11 activity-timeout repeater default 100000

dot11 activity-timeout workgroup-bridge default 100000

dot11 activity-timeout bridge default 100000

!

dot11 ssid WiFi_Stef

authentication open

authentication key-management wpa

guest-mode

wpa-psk ascii 7 14201B2D05342B38373F3C2726

!

!

bridge irb

!

!

interface Dot11Radio0

no ip address

no ip route-cache

!

encryption mode ciphers tkip

!

ssid WiFi_Stef

!

speed basic-1.0 2.0 5.5 11.0

station-role root

antenna receive right

antenna transmit right

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 dhcp client-id FastEthernet0

no ip route-cache

!

I use an iPhone 6S to try the association and the error is :

000150: Jul 15 10:37:58.453: %DOT11-6-ASSOC: Interface Dot11Radio0, Station 7048.0f6b.f316 Associated KEY_MGMT[WPA PSK]

000151: Jul 15 10:37:59.022: %DOT11-4-MAXRETRIES: Packet to client 7048.0f6b.f316 reached max retries, removing the client

000152: Jul 15 10:37:59.023: %DOT11-6-DISASSOC: Interface Dot11Radio0, Deauthenticating Station 7048.0f6b.f316 Reason: Previous authentication no longer valid

I already tried to add the cmd packet retry

for the model 1131G, the encryption mode cyphers is aes-ccm but not possible with the 1280B

Thanks

Stef

[Sandeep Choudhary]

HI,

Error: 000151: Jul 15 10:37:59.022: %DOT11-4-MAXRETRIES: Packet to client 7048.0f6b.f316 reached max retries, removing the client

Workaround: 

The Packet to client 7048.0f6b.f316 reached max retries, removing the client error message means that the AP disassociates the client because the client did not respond to max keep-alive messages sent by the AP. This can be an indication of a bad RF. Configure this command on the AP in order to eliminate this issue and to enable the client to not lose the connection:
packet retries 128 drop-packet

The increase of packet re-tries to 128 with the drop-packet option is a workaround for the bad RF problem.

Info: The maximum data retries setting determines the number of attempts the access point/bridge makes to send a packet before giving up and dropping the packet. The default setting is 32

Regards

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[hentang]

"AP disassociates the client because the client did not respond to max keep-alive messages sent by the AP."

Is it a Cisco proprietary behavior?

[Sandeep Choudhary]

Is it a Cisco proprietary behavior?

No Its becuase of bad RF design/ or site survey was not properly done.

Regards

Dont forget to arte helpful posts