I want to upgrade my 4404 controller to 5-2-178-0. I am on 22.214.171.124
in the controller I go to commands/upload.
File type: configuration
Configuration File Encryption: Checked
Encryption Key: I dont know what to put here
Transfer Mode: TFTP
IP Address: 172.16.19.112
File Path: C:\Controllerupdate
File Name: AIR-WLC4400-K9-5-2-178-0.aes
i open tfpt32
Current Directory: C:\Controllerupdate
I hit the upload button on the controller and it tells me File transfer failed!.
What am I doing wrong?