Hello Everyone,After upgrading the WLC to version 17.9, one of the APs is experiencing an "image signature failed" error. The error message is:[*01/01/1970 00:00:25.9340] verify signature failed for /bootpart/part2/ramfs_data_cisco.cpio.lzmaI would l...

Difference between bundle mode and install mode on WLC upgrade?What is recommended while upgrading the 9800-80 WLC?is there any difference in features or any other factor between the modes?

Hello team,I need to upgrade both the standby and active WLCs using the CLI. However, I couldn't find the method to upgrade the standby WLC via CLI in the official Cisco documentation. Could you please share the procedure? I believe the standby WLC h...