We have an issue with Wireless controller model 4402 loaded with 220.127.116.11. This box has stopped authenticating (Layer3 security Web Policy based local usernames and password) last night.
Steps taken to resolve the issue:-
1) Created local usernames and password via Web and tried using wireless through Guest ssid, when user enters this information web page loops back to authentication.
2) Tried authenticating via another Laptop, had no luck.
3) Changed WLAN SSID Guest from Layer3 security Web Policy to Layer2 Security, created Mac filter table for guest on the Controller. Guest was able to connect to the internet.
We have not made any configuration change. As this issue affected all Users, we restarting the controller after which issue was resolved. As per my colleagues this has happened couple of times and every time restart fixes this issue.
Please shed some light on this.