Debugging a Client
Sometimes you might encounter a client that is having trouble connecting, but nothing seems to be obviously wrong. For example, a controller might show that the client is stuck in the 8021X_REQD or DHCP_REQD state, but you are not able to figure out why. Perhaps the client does not even get that far along in its attempts to associate. If you know which AP and controller the client is attempting to associate with, you can gather useful debugging information.
From the controller command-line interface (CLI), enter the command debug client client-mac-address. Be sure to configure your terminal emulator session to log or save all ...
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