What do you mean by "I would take a look on the Link Latency paramenter on the WLC. You may extend the value to the maximum allowed." Can you provide some documentation?
If you can stop ISE VM, just mount ISE disks under another Linux VM where you have all the rights and do the cleanup. Also, having access to the ISE disks will give you the option to add an account with shell access and you can add it to sudoers. End...
