In a deployment using the lightweight access points， clients set up to authenticate with eap-peap or eap-cisco wireless （leap） cannot authenticatE. upon inspection of the failed attempts report you see the following error： "unknown network access server nas." What two problems can cause this type of failure？（）
- Amisconfigured ip address of the aaa server on the wireless controller
- Bmisconfigured ip address of the wireless lan controller on the aaa server
- Cmisconfigured eap type on the wireless lan controller
- Dmisconfigured shared secret on the wireless lan controller
- Emisconfigured eap type on the aaa server