AIR-AP2802E Problem Connection

mievta · ‎11-20-2022

We have a few device AIR-AP2802E which already install on office, a few of them sometimes problem like this : when someone already conecting to device, a connection on internet suddenly lost, and if some device want to connect to device, it's have DHCP Problem. For now a device must be restart for solving that problem. I try to capture and analys log device and i found some notice error like this :

4:16:52 <10.88.128.75>: <4>Nov 18 07:17:29 kernel: [*11/18/2022 07:17:29.1122] NBAR PD create: Failed to create and send message
2022.11.18-14:16:55 <10.88.128.75>: <4>Nov 18 07:17:31 kernel: [*11/18/2022 07:17:31.6341] NBAR DP Module - stile_lm_dp_to_cp_push - *ERROR*: DP to CP queue full
2022.11.18-14:16:55 <10.88.128.75>: <4>Nov 18 07:17:32 kernel: [*11/18/2022 07:17:32.1146] NBAR DP Module - stile_lm_dp_to_cp_push - *ERROR*: DP to CP queue full
2022.11.18-14:16:55 <10.88.128.75>: <4>Nov 18 07:17:32 kernel: [*11/18/2022 07:17:32.1146] Failed to send protocol-discovery DP to CP message
2022.11.18-14:16:55 <10.88.128.75>: <4>Nov 18 07:17:32 kernel: [*11/18/2022 07:17:32.1147] NBAR PD create: Failed to create and send message
<4>Nov 18 07:17:34 kernel: [*11/18/2022 07:17:34.2766] NBAR DP Module - stile_lm_dp_to_cp_push - *ERROR*: DP to CP queue full
<4>Nov 18 07:17:35 kernel: [*11/18/2022 07:17:35.1174] NBAR DP Module - stile_lm_dp_to_cp_push - *ERROR*: DP to CP queue full
<4>Nov 18 07:17:35 kernel: [*11/18/2022 07:17:35.1174] Failed to send protocol-discovery DP to CP message
<4>Nov 18 07:17:35 kernel: [*11/18/2022 07:17:35.1174] NBAR PD create: Failed to create and send message

Can anyone help me for solving that problem ?

Thank You Before That

Leo Laohoo · ‎11-20-2022

Is that the correct time-and-date of the AP, 18 November 2022?

mievta · ‎11-20-2022

Yes, I Capture Log on that day

Rich R · ‎11-21-2022

First:
What model of WLC?
What version of software is the WLC running?
How is the WLAN configured? open/WPA2/WPA enterprise, which other features enabled?
Does this happen to all clients or only some clients?
Have you run debug on the WLC for affected clients?
Do the affected clients have anything in common? eg same model of device or network adapter, same version of OS etc
Is the client firmware/OS/driver fully up to date?

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TAC recommended codes for AireOS WLC's and TAC recommended codes for 9800 WLC's
Best Practices for AireOS WLC's, Best Practices for 9800 WLC's and Cisco Wireless compatibility matrix
Check your 9800 WLC config with Wireless Config Analyzer using "show tech wireless" output or "config paging disable" then "show run-config" output on AireOS and use Wireless Debug Analyzer to analyze your WLC client debugs
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Leo's list of bugs affecting 2800/3800/4800/1560 APs
Default AP console baud rate from 17.12.x is 115200 - introduced by CSCwe88390

mievta · ‎11-21-2022

We've WLC 5520 Series which running on 8.10.142.0 OS Version, WLAN configured using AAA method using portal and spme SSID using WPA2, some device having 2 or 3 SSID on distribution.
If problem happen, user cannot connect to every SSID. As i mention above for someone already conecting to device, a connection on internet suddenly lost, and if some device want to connect to device, it's can't be connected.
How to run debug on WLC ??
That problem is random, event a new device which have already instaled new OS and driver or older device is having same problem to connect.
FYI that problem happen after 2 years, if that proble related must be update new version IOS on WLC or AP, i still cannot understand why this happen after 2 years because there are not bugs related that.