Problem clients - ReasonCode:Previous authentication not valid ReasonCode 2

[aleopoldie]

Here i my problem... When some clients are connected on 3 SSID'S, 10 or 15 mn after, they are deauthenticated.. and they have to connect again on the SSID.

What is this ReasonCode2 ? there is always a reasonCode but i don't really know the meaning..

Thanks for your answers.

Alexis

[Raphael]

Have you found a solution for this problem? I am having a similar problem after upgrading to 7.6.130.0 that I get the message "Previous authentication not valid ReasonCode: 2"

But I haven't found any helpful clue on Google... :( Any help is appreciated.

[aleopoldie]

Hi,

No we are still blocked on this issue...

I upgraded my WLC to 8.0. It seems to be ok, i heard nothing about any problems until today :)

Cheers,

[George Stefanick]

The meaning of the code is ReasonCode 2: Previous authentication no longer valid (Client associated but not authorized).

[Isuru Manikkage]

Dear All,

I am running 8.0.115.0 on 5508 WLC and im still experiencing this issue. 

In the WCS i am seeing "Previous Authentication Not Valid". Users disconnect time to time.

Previously I was on 7.4.110.0 and I did not face many issues and the v8 is not stable as 7.4. That was my opinion.

[aku]

Hi Raphael,

We have a similar situation.

WLC5508
version: 7.6.130.0
AP: AIR-CAP2702I-E-K9

Can you confirm that upgrading WLC to 8.0 resolved the "Previous authentication not valid ReasonCode: 2" issue on endpoints?

Hope to get you feedback, thank you in advance.

BR, Ales

[aleopoldie]

Hello Ales,

As for me, the upgrade to 8.0 was a solution for this issue.

BUT, be carefull, I had many times the same issue regarding the 8.0 i've installed on some WLCs 5508, the WLCs reboot randomly 1 or times 2 times per week. That's strange because i didn't have this issue for all WLCs i've installed...

Cheers,

AL

[Vasco Costa]

Hi,

Which 8.0 version are you running?

We had that issue with 8.0.110 and we could only solved it after upgrading to 8.0.110.6 or 8.0.110.9.

Cheers,

Vasco

[aleopoldie]

Hello Vasco,

I am running version 8.0.115.0, Cisco proposed me the 8.0.110.9 code but i didn't test it. But i had another issue, i got some random reboots for 2 customers who have the 5508 model (sometimes it was 1 time per week, sometimes it was 3 times...) , then i went back to 7.6.130.0 which is more stable (as for me).

Did you use the "debug client <MAC address>" command over CLI to troubleshoot ? It really helps me when some clients are facing disconnection issues.

Hope this helps,

Cheers,

Alexis

[mario_thomas15]

This is caused because the memory reach the threshold permitted. ~89%. The memory is increased because CDP, you can disable it and the problem would be solved. If this is no the cause of the problem do a show process and see which is consuming more memory.