Client can't pass traffic at all

[Dave Anthony David]

Cisco 5520 with HA

Cisco 2802i

8.2.161.0

AP is in local mode.

User is authenticated using WPA2-PSK

Issues are affecting Windows 10, Windows 7 and macOS (High Sierra)

Once the client is not able to pass traffic the only way to recover is fresh authentication from the client or roam client to a different AP.

This was recorded in Bug id CSCvc67005 and flagged as fixed in version 8.2.160.0 but it seems issue are still there.

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvc67005

Help anyone?

[compterds]

Having the same issue as mentioned. Any solution found ??

[ALIAOF_]

8.2.166.0 same issue.  Looks like per Scott 8.5 seem to have it fixed.  Will test soon.

[ivanchakarov]

Did somebody find the root cause or solution of the problem? I still cannot find related registered bug and I do not want to experiment with 8.5. :|

[janvelgado_16]

On our case we hit this bugCSCve57121 ( https://bst.cloudapps.cisco.com/bugsearch/bug/CSCve57121/?reffering_site=dumpcr ) and TAC recommended us to upgrade to 8.3.133.0 MR. So far no more disconnections experienced by user. 

HTH,

Jan

[joshhunter]

Seeing this on AireOS 8.5.120.0 with Cisco 2802 APs.

Windows 7 Device shows limited connectivity, the ARP entry is gone for the gateway.

The WLC shows client in run state and fully associated and authenticated.

Can see Client is continually broadcasting FF:FF:FF:FF:FF:FF on the air, to resolve, client needs to disconnect/reconnect or wait for EAP re-key to resume access and for limited conncectivity to disappear. 

Issue does not occur at set time, same AP will still be serving other clients.