If your are not getting your wireless internet so follow these steps.
> Check WAN and LAN connection.
> Verify wireless adopter .
> Verify AP and router setting.
> Verify TCP/IP settings.
> Verify network connection with ping.
> Check wireless-specific issues.
> Look for a security mismatch.
> Ensure RADIUS is working.
> Check 802.1x EAP and user login.
> Check interm ittent network connectivity issues.