I believe you can split up the chained certificate to the separate ones and then install first the root, then all intermediates and as the last one the machine certificate. I think it worked that way when I did it once on a 4404 controller.
Transferring Crash file from standby: Login to the Active WLC in HA.
From CLI: (Cisco Controller) >transfer upload datatype crash (Cisco
Controller) >transfer upload filename (Cisco
Controller) >transfer upload mode tftp (Cisco Controller) >transfer
This is the start of a display filter cross reference between Wireshark
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