I'm trying to upgrade my Cisco WLC 5508 with 125 AP's from 7.0.116 to 7.4.110, so it can support the new AIR-CAP2602 and the old AIR-LAP1142 at the same time, but for some reasons the AP's will not accept the new software. (Cisco Controller) >show boot Primary Boot Image............................... 7.0.116.0 (default) (active) Backup Boot Image................................ 7.4.110.0 I have tried to predownload the new image to all AP's from the WLC, and it sucses, but the predownloaded image was not copied into the Backup image. (Cisco Controller) >show ap image all Total number of APs..............................   125 Number of APs         Initiated........................................... 0         Predownloading................................ 125         Completed predownloading................ 0         Not Supported.................................. 0         Failed to Predownload....................... 0                                                  Predownload     Predownload AP Name            Primary Image  Backup Image   Status          Version        Next Retry Time  Retry Count ------------------ -------------- -------------- --------------- -------------- ---------------- ------------ AP-xx-01               7.0.116.0      7.0.116.0       Complete        7.4.110.0       NA               NA .... When I then re-boot the WLC on the new software (7.4.110), the AP's just show up in the GUI as "downloadning" and the the AP's re-boot. This going on and on, so I had to force the WLC to reset on the old software (7.0.116). I think my problem is, that the AP's have the same image atached to both Primary and Backup, so my question is: How do I clear the information about the Backup image in the AP's and downlod the new image to the AP's? Can I ftp/tftp the new image direct to the AP's and Then do any configurations at the AP's to make it the Backup image? THX Frank ... View more