Cisco 5520 - Image Specifications; Feature Not Supported on 5520 Controller Platform; Fault Tolerance Capability; AP and Client SSO

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Cisco 5520 and 8540 Wireless Controller Troubleshooting Guide
Troubleshooting
• Enable HyperVisor in Enable/Disable Virtual Device to connect it back to HOST.
APs not joining with and cannot find AP images
Solution
• Check if the AP image bundle is present on the controller.
Show ap bundle all
Note The above command is seen if the AP images are present.If not found transfer download AES image to
re-install the AP bundle.
Serial Console not present at customer can we use SOL
Solution
Yes. But note that external consoles will be disabled.