WLC5508

maged altwaiti · ‎01-12-2022

we have WLC 5508 S.W ver 7.6.110.0 . Field Recovery Image Version 7.6.95.16.

recently system is hung up and stop working and APs are disappeared. we can't do any thing until we power off WLC and power on it .

Sys led is blinking amber and ALM ls is off.

we need to your help us to solve this problem.

regard<<<

balaji.bandi · ‎01-12-2022

check the below thread may help to resolve the issue : ( if you have contract raise an TAC case)

Also worth another look of the bug :

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jagan.chowdam · ‎01-12-2022

It seems your controller crashed. Have a look at the "Checking the Controller LEDs" table from the following URL

There is a crash file that is stored and can be exported. This is what TAC will ask for if you open a case.

Search for WLC crash file or WLC crash log:

https://supportforums.cisco.com/t5/wireless-mobility-documents/how-to-find-amp-retrieve-wlc-s-crash-coredump-from-its-s-flash/ta-p/3145554

CJ

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Haydn Andrews · ‎01-12-2022

Any reason your still running 7.6? I guarantee any Cisco support cases going to say its EOL and to upgrade.

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Leo Laohoo · ‎01-12-2022

@Haydn Andrews wrote:

Any reason your still running 7.6? I guarantee any Cisco support cases going to say its EOL and to upgrade.

I suspect the lack of a valid Service Contract to download the firmware (WLC 55088 Upgrade).

Had maged altwaiti confirmed this is the case, I could have offered an option to download the firmware (legally, of course) for free.

maged altwaiti · ‎01-12-2022

Hello,,,

Thank you for help ...

our Service Contract is out of date .

could you please download the firmware.

Regards,,,

Leo Laohoo · ‎01-12-2022

@maged altwaiti wrote:

our Service Contract is out of date .

could you please download the firmware.

Ok, here are the steps that YOU (not I) need to do:

Read the Release Notes (for 8.5.X.X) very carefully.
You will need TWO (2) firmware: 8.2.16X.X (or 8.3.X.X) and the destination firmware. Take down the filenames of both firmware.
Read this: Cisco IOS XE Software for Catalyst 9800 Series and Cisco AireOS Software for Cisco WLC Flexible NetFlow Version 9 Denial of Service Vulnerability
Scroll down to the Customers Without Service Contracts section. Read that very, very carefully.
Explain to TAC that you will need both firmware files.

Hope this helps & good luck.