Wireless Connectivity Issues Cisco WLC 2504

[kris yip]

Hi all,

I have a Cisco WLC 2504 running 8.5.120.0 software version connected to two APs AIR-AP1852I-S-K9. I have a problem with wifi connectivity that an user is disconnected from WLAN when walking from AP1 to AP2 coverage. And the log shows that the user cannot authenticate. The SSID is using [WPA2][Auth(PSK)] to authenticate. We confirm the user is using the correct password.

*Dot1x_NW_MsgTask_3: Feb 22 15:35:05.052: %DOT1X-3-PSK_CONFIG_ERR: 1x_ptsm.c:729 Client a0:99:9b:1b:f1:bb may be using an incorrect PSK
*Dot1x_NW_MsgTask_3: Feb 22 15:11:03.329: %DOT1X-3-PSK_CONFIG_ERR: 1x_ptsm.c:729 Client a0:99:9b:1b:f1:bb may be using an incorrect PSK
*Dot1x_NW_MsgTask_3: Feb 22 15:07:41.101: %DOT1X-3-PSK_CONFIG_ERR: 1x_ptsm.c:729 Client a0:99:9b:1b:f1:bb may be using an incorrect PSK

Can anyone help on it? Thanks.

[kris yip]

I have a Cisco WLC 2504 running 8.5.120.0 software version connected to two APs AIR-AP1852I-S-K9. I have a problem with wifi connectivity that an user is disconnected from WLAN when walking from AP1 to AP2 coverage. And the log shows that the user cannot authenticate. The SSID is using [WPA2][Auth(PSK)] to authenticate. We confirm the user is using the correct password.

*Dot1x_NW_MsgTask_3: Feb 22 15:35:05.052: %DOT1X-3-PSK_CONFIG_ERR: 1x_ptsm.c:729 Client a0:99:9b:1b:f1:bb may be using an incorrect PSK
*Dot1x_NW_MsgTask_3: Feb 22 15:11:03.329: %DOT1X-3-PSK_CONFIG_ERR: 1x_ptsm.c:729 Client a0:99:9b:1b:f1:bb may be using an incorrect PSK
*Dot1x_NW_MsgTask_3: Feb 22 15:07:41.101: %DOT1X-3-PSK_CONFIG_ERR: 1x_ptsm.c:729 Client a0:99:9b:1b:f1:bb may be using an incorrect PSK

Can anyone help on it? Thanks.

[Jurgens L]

If it's only affecting one user, try to update the network driver of the end device.

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[Flavio Miranda]

Hi,

  We can list some reasons for that. Coverage problem is one of them.  High channel utilization is a second one. Client driver also can be the problem.

 Try to debug while moving and share the whole conversation with us.

-If I helped you somehow, please, rate it as useful.-

[Leo Laohoo]

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@kris yip wrote:

I have a Cisco WLC 2504 running 8.5.120.0 software version

Stop right there. 

I am not troubleshooting any wireless issue until the controller is upgraded to, a minimum, 8.5.135.0.   Period.

[Scott Fella]

Leo is funny 😄

To Leo’s point, you run into more issues with the new code vs the later MR releases. I personally would upgrade to 8.5.135.0 or 8.5.140.0.

Also provide more information. Is it one device, a specific device type? One user having issues is definitely an issue with the device. If there are many users having issues, then maybe a coverage issue, interference between the two areas or a configuration issue.