WLC firmware downgrade

Answered Question
Dec 31st, 2007

Hi,

Does anybody know if it is possible to downgrade a WLC by dowloading a lower version of the code ?

Or does this depend on the versions ?

Thanks,

Gerard van Bon

I have this problem too.
0 votes
Correct Answer by rob.huffman about 8 years 11 months ago

Hi Gerard,

You can Downgrade the WLC Release Version, but be careful of this note;

Caution: If you require a downgrade from one release to another, you may lose the configuration from your current release. The workaround is to reload the previous controller configuration files saved on the backup server or to reconfigure the controller.

Managing Controller Software and Configurations

http://www.cisco.com/en/US/docs/wireless/controller/4.1/configuration/guide/c41mfw.html

The only rstriction I have seen to downgrading is with some of the Mesh Releases. You can see the details here;

Cisco 4400 Series Wireless LAN Controllers Release Notes

http://www.cisco.com/en/US/products/ps6366/prod_release_notes_list.html

Hope this helps!

Rob

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Correct Answer
rob.huffman Mon, 12/31/2007 - 09:18

Hi Gerard,

You can Downgrade the WLC Release Version, but be careful of this note;

Caution: If you require a downgrade from one release to another, you may lose the configuration from your current release. The workaround is to reload the previous controller configuration files saved on the backup server or to reconfigure the controller.

Managing Controller Software and Configurations

http://www.cisco.com/en/US/docs/wireless/controller/4.1/configuration/guide/c41mfw.html

The only rstriction I have seen to downgrading is with some of the Mesh Releases. You can see the details here;

Cisco 4400 Series Wireless LAN Controllers Release Notes

http://www.cisco.com/en/US/products/ps6366/prod_release_notes_list.html

Hope this helps!

Rob

vanbon Tue, 01/01/2008 - 00:20

Thanks Rob,

This helps al lot.

Kind regards,

Gerard

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