Wireless Radius Authentication - Client can't connect to wireless network.

So the masses are just screaming. They can't connect to the wireless SSID.

Gather the client's MAC from their wireless network connection:

CMD: (In windows command prompt)  - ip config - scroll to wireless connection



To begin its time to debug!

CMD : debug client <MAC ID>

 Example : debug client 11:22:33:44:55:66 



After a debug we can see the clients' authentication or errors based on the MAC addressed defined.

Below is a debug of the client having issues:



Authentication has exceeded its maximum attempts. This leads me to check into the radius server before changing any settings for attempts or timing values ( which can be a problem as well ). 

Low and behold the radius server had an expired authentication certificate. 

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