WLC 4404 Image Integrity Check Failed (Bad Data CRC) Hanging

[edgar_pascal]

Dear,

My WLC 4404 suddently led alarm, after restarted with console looks like

Image Integrity Check Failed (Bad Data CRC) hanging.

How to fix plese help.

IOS version 4.1.185.

Regards,

Lian

[Leo Laohoo · Accepted solution]

Contact TAC and get the appliance RMA-ed.

[edgar_pascal]

Did you mind we can RMA for free replacement?

[edgar_pascal]

Thanks for you help Leo.

Very helpful.

Lian

[edgar_pascal]

Hi Leo,

there is another way to fix, because currently we did'nt have contract maintenance.

Lian
 

[Leo Laohoo · Accepted solution]

Another way of doing things is by "grub" but you also need a Service Contract to get the instructions from TAC.

[m.kowalik]

Try this options:

1) Make a binary copy of a flash from working WLC and place it to your WLC 

or

2) Change your RAM (worked in my case)