Hi guys, i've tried to upgrade the image again, i've also checked the md5: same behaviour. Wlc crashed during upgrade including console connection Now the wlc no longer boots up with any image, both primary and backup. He gets stuck in "loading images". The images also seem not to have the correct file size when the controller starts booting. How can I restore the image now? i've the wlc completely down. Thank you Sent from Cisco Technical Support iPad App ... View more

Thank you Scott, I'll follow your advice and let you know guys tomorrow. Regards ... View more

Hi guys, The current active image now is the 7.4.100 backup image and the default image is the new one (7.4.110) that is not working. If I set the backup image as the default and I reboot the controller, will it overwrite the 7.4.110 with the 7.4.100 when I perform the upgrade again? At the end I'd like to have the 7.4.110 as primary and the 7.4.100 as backup. My fear is that, after the upgrade, I'll loose the 7.4.100 that is working and I will not be able to boot the wlc in case of upgrade failure. In other words: when you set the backup image as the boot image and reboot, will it become the primary image? According to Cisco doc it seems yes: "In order to remove or overwrite an image on the WLC, boot up the WLC with the image that you want to keep and perform an upgrade. This way, the new image replaces the primary image." http://www.cisco.com/image/gif/paws/107530/backup-image-wlc.pdf Thank you for your help. Bye Sent from Cisco Technical Support iPad App ... View more

Thank you Leo. I'll give it a try on monday. But why did the controller stop working while uploading? I did not foresee that ! Sent from Cisco Technical Support iPad App ... View more