very Urgent , my Cisco WLC is halted and not working !

[Ali mosbah Abdo]

Dear all ,

my Cisco WLC is display this message and its not working at all.

##########################################
### IMPROPER SYSTEM OPERATION DETECTED  ###
### ----------------------------------                                 ###
### System has been halted because:                      ###
### 1. Boot loader failed verification                          ###
##########################################

please any idea to solve this issue.

Regards

ali

[Sandeep Choudhary]

Contact Cisco TAC is the best option.

Most of the time it's type of hardware error.

Not anyone else can you in this matter. TAC can guide or they will tell u to RMAed this device.

Regards

[EvaldasOu]

As I see in the bug notes it's written:

• Affected releases: 8.0(110.0)
• Probability of 2504s being impacted is significant; probability of 5508/WiSM2 being impacted is much smaller.
• Workaround:Replace the WLC.

Why this release is still not deferred? Our customer lost two WLC 2504 the same day!

[s.hellman]

Hi.

I have the same problem, did you solve it?

[Scott Fella]

You need to contact TAC.

-Scott

[mohanak]

2500 possible bricking on kernel crash

CSCus97021

Description

Symptom:
After a kernel crash/panic, the 2500 may corrupt the bootloader and not start again

console may show something like:
> ##########################################
> ### IMPROPER SYSTEM OPERATION DETECTED ### > ### ---------------------------------- ###
> ### System has been halted because: ###
> ### 1. Boot loader failed verification ### > ##########################################



Conditions:
Triggered by a software crash

Last Modified:

Feb 18,2015

Status:

Open

Severity:

1 Catastrophic

Product:

Cisco 5500 Series Wireless Controllers

Known Affected Releases:

(1)

8.0(110.0)

[rlaudiano]

should we downgrade from 8.0.110 or can we just keep it and keep away from web authentication?